Smithsonite - 79 Mine, Chilito, Hayden area, Banner Mining District, Gila County, Arizona, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Mimetite + Bayldonite + Quartz + Azurite - Black Pine Mine, Granite County, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Demantoid - Antetezambato Demantoid-Topazolite Mine, Antsakoamanondro, Ambanja District, Diana, Madagascar
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Rhodochrosite - Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Epidote - Green Monster Mountain, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Epidote - Green Monster Mountain, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Epidote - Green Monster Mountain, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Dioptase - Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth Mining District, Pinal County, Arizona, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Rosasite - Silver Bill Mine, Costello Mine group, Gleeson, Turquoise Mining District (Courtland-Gleeson Mining District), Cochise County, Arizona, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Malachite ps. Azurite - Tsumeb Mine, Oshikoto Region, Namibia, Africa
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Quartz (Japan Law Twin) - Duquesne, Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Pyromorphite - Society Girl Mine, Moyie, Fort Steele Mining Division, British Columbia, Canada
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Descloizite - Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Calcite - N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Quartz + Epidote - Green Monster Mountain, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Rhodochrosite - Emma Mine, Silver Bow County, Butte, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Enargite - Butte Mines, Silver Bow County, Butte, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Rhodochrosite - Emma Mine, Silver Bow County, Butte, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Pyromorphite - Bunker Hill Mine, Wardner, Shoshone County, Idaho, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Amethyst - Fireman Pocket, Goldflint Mountain Jefferson County, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Mimetite + Bayldonite + Quartz - Black Pine Mine, Granite County, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Veszelyite + Quartz - Black pine Mine, Granite County, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Cerussite + Mimetite + Hubnerite + Stolzite - Black pine Mine, Granite County, Montana, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Aragonite ps Gypsum - Copper Canyon, Campe Verde, Yavapi County, Arizona, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Gypsum - Alabaster Quarries, Fuentes de Ebro, Zaragoza, Aragon, Spain
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Cerussite - Bunker Hill Mine, Wardner, Shoshone County, Idaho, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Galena - Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Apatite + Muscovite - Sapo Mine, Ferruginha, Conselheiro Pena, Minas Gerais, Brazil
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Adularia + Chlorite - Acushnet, Bristol County, Massachusetts, USA
Specimen shown in standard perky box
(Base - 1.25 × 1.25in - 31.5mm x 31.5mm)
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Carbide mining lamps produced light by combining calcium carbide with water to generate acetylene gas, which was then burned at a small nozzle to create a bright flame. The lower reservoir held the carbide, while water from the upper chamber was released gradually to control the rate at which acetylene was produced. Miners could regulate the water flow to adjust the flame and, consequently, the amount of light produced. These lamps were widely used underground because they were relatively simple, durable, and provided dependable illumination before electric cap lamps became commonplace.
This is an example of a Auto-Lite lamp, made in Springfield, Illinois. Some components are missing, but overall, relatively complete. An excellent display piece to accent any collection.
Carbide mining lamps produced light by combining calcium carbide with water to generate acetylene gas, which was then burned at a small nozzle to create a bright flame. The lower reservoir held the carbide, while water from the upper chamber was released gradually to control the rate at which acetylene was produced. Miners could regulate the water flow to adjust the flame and, consequently, the amount of light produced. These lamps were widely used underground because they were relatively simple, durable, and provided dependable illumination before electric cap lamps became commonplace.
This is an example of a Guy’s Dropper lamp, made in Springfield, Illinois. There is a split in the brass from a strong miner overtightening the casing. It overall represents a unique antique of mining history.
Carbide mining lamps produced light by combining calcium carbide with water to generate acetylene gas, which was then burned at a small nozzle to create a bright flame. The lower reservoir held the carbide, while water from the upper chamber was released gradually to control the rate at which acetylene was produced. Miners could regulate the water flow to adjust the flame and, consequently, the amount of light produced. These lamps were widely used underground because they were relatively simple, durable, and provided dependable illumination before electric cap lamps became commonplace.
This is an example of a Guy’s Dropper lamp, made in Springfield, Illinois. It is missing some components, but overall represents a unique antique of mining history
The Little Gem Mine was discovered by local gold prospectors in 1886. An article in "The Mineralogist" written in 1941 describes the travel from Butte by covered wagon, to the Nine Mile Inn, then subsequent travel to the deposit where collectors "filled their packs with amethyst" during the original find. In 1958 a Claim was filed by Oregon Geologist Jerry Gray. Gray worked the surface sporadically for 30+ years, brought in heavy equipment to build road access in the early 1990's. His goal was to create a secure working environment protected from trespassers. He tunneled about 100 feet through solid granite to reach the core, where he then put a raise. The narrow raise follows an aplite zone upwards and east; the raise opened a series of pockets that he extended into a drift, which ran parallel to the core. The present owner, Russ Hage, purchased the claim after Gray's death. Hage and working partner Mike Uphus together brought to light innumerable fine specimens. In 2013 the old drift in aplite was de-roofed and its access buried. In summer of 2022, local prospector Paul Senn took over mine management working side by side with owner Russ Hage. Since 2010 it has been worked from the surface, primarily by hand aided by small scale blasting and an excavator. Current work has exposed many pockets containing fine amethyst scepters and jacare' texture amethyst. Jacare' is a Portuguese term denoting alligator skin texture.
“The perfect miniature doesnt exis…” This is an absolutely lovely example of a singular amethyst crystal from the 2025 production. Numerous generations of amethyst pile over one another to create this beautiful end result.
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(1.1 × 0.8 × 1.5 in - 2.7 × 2.0 × 3.8 cm) 0.9oz / 24g
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The Little Gem Mine was discovered by local gold prospectors in 1886. An article in "The Mineralogist" written in 1941 describes the travel from Butte by covered wagon, to the Nine Mile Inn, then subsequent travel to the deposit where collectors "filled their packs with amethyst" during the original find. In 1958 a Claim was filed by Oregon Geologist Jerry Gray. Gray worked the surface sporadically for 30+ years, brought in heavy equipment to build road access in the early 1990's. His goal was to create a secure working environment protected from trespassers. He tunneled about 100 feet through solid granite to reach the core, where he then put a raise. The narrow raise follows an aplite zone upwards and east; the raise opened a series of pockets that he extended into a drift, which ran parallel to the core. The present owner, Russ Hage, purchased the claim after Gray's death. Hage and working partner Mike Uphus together brought to light innumerable fine specimens. In 2013 the old drift in aplite was de-roofed and its access buried. In summer of 2022, local prospector Paul Senn took over mine management working side by side with owner Russ Hage. Since 2010 it has been worked from the surface, primarily by hand aided by small scale blasting and an excavator. Current work has exposed many pockets containing fine amethyst scepters and jacare' texture amethyst. Jacare' is a Portuguese term denoting alligator skin texture.
This specimen is an exceptional miniature example of etched microcline lightly coated in sericite mica, with a protruding amethyst harvested in the 2025 season. For how small the amethyst is, the scepter displays wonderful pink color. From a geologic perspective, it is worth noting the etched zones on the microcline allowed ready nucleation sites for the later stage quartz!
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(2.0 × 2.0 × 2.4 in - 5.0 × 5.0 × 6.0 cm) 3.9oz / 111g
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The Little Gem Mine was discovered by local gold prospectors in 1886. An article in "The Mineralogist" written in 1941 describes the travel from Butte by covered wagon, to the Nine Mile Inn, then subsequent travel to the deposit where collectors "filled their packs with amethyst" during the original find. In 1958 a Claim was filed by Oregon Geologist Jerry Gray. Gray worked the surface sporadically for 30+ years, brought in heavy equipment to build road access in the early 1990's. His goal was to create a secure working environment protected from trespassers. He tunneled about 100 feet through solid granite to reach the core, where he then put a raise. The narrow raise follows an aplite zone upwards and east; the raise opened a series of pockets that he extended into a drift, which ran parallel to the core. The present owner, Russ Hage, purchased the claim after Gray's death. Hage and working partner Mike Uphus together brought to light innumerable fine specimens. In 2013 the old drift in aplite was de-roofed and its access buried. In summer of 2022, local prospector Paul Senn took over mine management working side by side with owner Russ Hage. Since 2010 it has been worked from the surface, primarily by hand aided by small scale blasting and an excavator. Current work has exposed many pockets containing fine amethyst scepters and jacare' texture amethyst. Jacare' is a Portuguese term denoting alligator skin texture.
This specimen is an exceptional miniature example of microcline coated in sericite mica, with a protruding amethyst harvested in the 2023 season. One word really defines this piece: CUTE! For how small the amethyst is, the scepter displays wonderful color in contrast especially to the green sericite.
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(1.5 × 1.9 × 1.6 in - 3.8 × 4.8 × 4.0 cm) 1.1oz / 31g
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The Little Gem Mine was discovered by local gold prospectors in 1886. An article in "The Mineralogist" written in 1941 describes the travel from Butte by covered wagon, to the Nine Mile Inn, then subsequent travel to the deposit where collectors "filled their packs with amethyst" during the original find. In 1958 a Claim was filed by Oregon Geologist Jerry Gray. Gray worked the surface sporadically for 30+ years, brought in heavy equipment to build road access in the early 1990's. His goal was to create a secure working environment protected from trespassers. He tunneled about 100 feet through solid granite to reach the core, where he then put a raise. The narrow raise follows an aplite zone upwards and east; the raise opened a series of pockets that he extended into a drift, which ran parallel to the core. The present owner, Russ Hage, purchased the claim after Gray's death. Hage and working partner Mike Uphus together brought to light innumerable fine specimens. In 2013 the old drift in aplite was de-roofed and its access buried. In summer of 2022, local prospector Paul Senn took over mine management working side by side with owner Russ Hage. Since 2010 it has been worked from the surface, primarily by hand aided by small scale blasting and an excavator. Current work has exposed many pockets containing fine amethyst scepters and jacare' texture amethyst. Jacare' is a Portuguese term denoting alligator skin texture.
This specimen is a beautiful miniature example of microcline with a protruding amethyst, harvested in the 2023 season. It exhibits excellent luster and good color. The importance of such a specimen is to show the unique conditions the “fingerprint” style amethyst grows in, encompassing nearly the entirety of its feldspar walled pocket. Simple, yet elegant.
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(2.7 × 1.4 × 1.3 in - 6.8 × 3.5 × 3.3 cm) 2.6oz / 73g
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The Little Gem Mine was discovered by local gold prospectors in 1886. An article in "The Mineralogist" written in 1941 describes the travel from Butte by covered wagon, to the Nine Mile Inn, then subsequent travel to the deposit where collectors "filled their packs with amethyst" during the original find. In 1958 a Claim was filed by Oregon Geologist Jerry Gray. Gray worked the surface sporadically for 30+ years, brought in heavy equipment to build road access in the early 1990's. His goal was to create a secure working environment protected from trespassers. He tunneled about 100 feet through solid granite to reach the core, where he then put a raise. The narrow raise follows an aplite zone upwards and east; the raise opened a series of pockets that he extended into a drift, which ran parallel to the core. The present owner, Russ Hage, purchased the claim after Gray's death. Hage and working partner Mike Uphus together brought to light innumerable fine specimens. In 2013 the old drift in aplite was de-roofed and its access buried. In summer of 2022, local prospector Paul Senn took over mine management working side by side with owner Russ Hage. Since 2010 it has been worked from the surface, primarily by hand aided by small scale blasting and an excavator. Current work has exposed many pockets containing fine amethyst scepters and jacare' texture amethyst. Jacare' is a Portuguese term denoting alligator skin texture.
This specimen is a beautiful scepter displaying epitaxy on the feldspar. The amethyst has a light color, and micro pyrite inclusions are present when magnified. In total, 5 crystals terminate on this specimen. A classic Little Gem Mine piece
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(1.2 × 0.9 × 1.7 in - 3.0 × 2.2 × 4.3 cm) 1.3oz / 36g (With base)
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The Little Gem Mine was discovered by local gold prospectors in 1886. An article in "The Mineralogist" written in 1941 describes the travel from Butte by covered wagon, to the Nine Mile Inn, then subsequent travel to the deposit where collectors "filled their packs with amethyst" during the original find. In 1958 a Claim was filed by Oregon Geologist Jerry Gray. Gray worked the surface sporadically for 30+ years, brought in heavy equipment to build road access in the early 1990's. His goal was to create a secure working environment protected from trespassers. He tunneled about 100 feet through solid granite to reach the core, where he then put a raise. The narrow raise follows an aplite zone upwards and east; the raise opened a series of pockets that he extended into a drift, which ran parallel to the core. The present owner, Russ Hage, purchased the claim after Gray's death. Hage and working partner Mike Uphus together brought to light innumerable fine specimens. In 2013 the old drift in aplite was de-roofed and its access buried. In summer of 2022, local prospector Paul Senn took over mine management working side by side with owner Russ Hage. Since 2010 it has been worked from the surface, primarily by hand aided by small scale blasting and an excavator. Current work has exposed many pockets containing fine amethyst scepters and jacare' texture amethyst. Jacare' is a Portuguese term denoting alligator skin texture.
This specimen is a beautiful miniature example of smoky, and amethyst intergrown to a uniquely charactered single crystal. This material only comes from one zone in the mine and carries signature traits. The presence of Brazil law twinning is easily viewed by the alternating matte/lustrous faces, which are defined best by looking down the c axis of the crystal. Clay inclusions are present in some of the chambers of the crystal.
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(1.5 × 1.0 × 1.7 in - 3.8 × 2.5 × 4.3 cm) 1.7oz / 48g
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The Little Gem Mine was discovered by local gold prospectors in 1886. An article in "The Mineralogist" written in 1941 describes the travel from Butte by covered wagon, to the Nine Mile Inn, then subsequent travel to the deposit where collectors "filled their packs with amethyst" during the original find. In 1958 a Claim was filed by Oregon Geologist Jerry Gray. Gray worked the surface sporadically for 30+ years, brought in heavy equipment to build road access in the early 1990's. His goal was to create a secure working environment protected from trespassers. He tunneled about 100 feet through solid granite to reach the core, where he then put a raise. The narrow raise follows an aplite zone upwards and east; the raise opened a series of pockets that he extended into a drift, which ran parallel to the core. The present owner, Russ Hage, purchased the claim after Gray's death. Hage and working partner Mike Uphus together brought to light innumerable fine specimens. In 2013 the old drift in aplite was de-roofed and its access buried. In summer of 2022, local prospector Paul Senn took over mine management working side by side with owner Russ Hage. Since 2010 it has been worked from the surface, primarily by hand aided by small scale blasting and an excavator. Current work has exposed many pockets containing fine amethyst scepters and jacare' texture amethyst. Jacare' is a Portuguese term denoting alligator skin texture.
This specimen is a beautiful miniature example of etched microcline with a protruding epitaxial quartz capped by amethyst, harvested in the 2025 season. It exhibits excellent luster and good color in the main crystal. “Fingerprint” style habit is displayed quite well by the amethyst. The etched microcline is accented by pale green sericite mica, an alteration mineral present throughout the mine.
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(2.2 × 1.5 × 1.5 in - 5.5 × 3.8 × 3.8 cm) 2.4oz / 69g
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Located just 18 miles south of Ennis, Montana sits the largest talc mine in the world; the Yellowstone Talc Mine. Currently operated by Margis Talc, the mine produces in excess of 250,000 tons of high purity talc annually. The deposit sits in the ultra mafic rock of the Madison range, and is not accessible to the general public.
This specimen is a simple, yet elegant example of a quartz cluster with light hematite coating. Collected on the high wall with permission by Bud Erhle years ago, this piece represents a rare sighting of crystals from a mine that otherwise is not well known for specimen production.
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(3.0 × 2.0 × 1.2 in - 7.6 × 5.0 × 3.0 cm) 4.2oz / 121g
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The PC Mine has minimal history beyond is specimen production, which first dates to 1983. At that time, the privately owned land was partly lease from Forest Klies by W. C. Van Laer, until 1987. In 1988, Pete Knudsen, Bryant Harris, and Elvis “Buzz” Gray acquired the mining lease and Knudsen would later assume full ownership in 1990. By 2005 any workable breccia was considered mined out. The deposit sits at river level on a private land cabin site. The mine was most well known for its production of Japan Law twin crystals, and tourmaline included quartz crystals. In addition, excellent gem quality sphalerite was also present, with galena, anhydrite and pyrite as well.
This specimen classic quartz “starburst” with just the right amount of tourmaline! The aesthetics speak for itself. Excellent crystal, this is a great representative piece of a now closed, and classic Montana locale!
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(2.1 × 1.8 × 1.1 in - 5.3 × 4.5 × 2.7 cm) 2.4oz / 68g
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A famous find in the 1970s by the late Bud Erhle, the signature calcite “fingers" of Carter County have long been a sought-after classic for collectors. Formed in concretion in the Pierre and bear paw shale, there are actually apparently several locales for the material. The crystal forms are often coated in a thick late-stage crust that is only removed by vinegar etching. Baryte, and selenite are known to form as well in the same concretions, which on occasion have fossils.
This is a classic miniature example of the historic and classic calcite “fingers” from Carter County. No damage is present to the crystal. This piece has been treated at some point with vinegar to remove the crusts. Non permanently mounted to acrylic.
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(1.4 × 0.5 × 0.3 in - 3.5 × 1.2 × 0.7 cm) 0.5oz / 15g (with base)
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Mineral specimens from the Pack Rat Mine in Montana became known primarily through small-scale collecting rather than large commercial production. Early miners occasionally saved attractive pieces of crystallized minerals encountered while following the ore veins, and some of these specimens later entered private collections. Interest from mineral collectors increased during the mid-twentieth century as reports of well-formed crystals and unusual mineral associations circulated among hobbyists and dealers. Because the workings were relatively small, most specimens recovered from the mine were limited in number and often obtained directly from underground pockets or from material on nearby dumps. A portion of the better examples gradually found their way into mineral shows, museum collections, and the hands of regional collectors. Today, specimens attributed to the Pack Rat Mine are considered relatively uncommon and are usually associated with material recovered during earlier periods of mining and collecting. While the mine is actively held as claim, no known current specimen production exists.
This specimen is a classic cluster of baryte crystals. Rich honey brown color.
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(2.5 × 1.5 × 1.7 in - 6.3 × 3.8 × 4.3 cm) 4.7oz / 134g
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Mineral specimens from the Pack Rat Mine in Montana became known primarily through small-scale collecting rather than large commercial production. Early miners occasionally saved attractive pieces of crystallized minerals encountered while following the ore veins, and some of these specimens later entered private collections. Interest from mineral collectors increased during the mid-twentieth century as reports of well-formed crystals and unusual mineral associations circulated among hobbyists and dealers. Because the workings were relatively small, most specimens recovered from the mine were limited in number and often obtained directly from underground pockets or from material on nearby dumps. A portion of the better examples gradually found their way into mineral shows, museum collections, and the hands of regional collectors. Today, specimens attributed to the Pack Rat Mine are considered relatively uncommon and are usually associated with material recovered during earlier periods of mining and collecting. While the mine is actively held as claim, no known current specimen production exists.
This specimen is a classic cluster of baryte crystals. Overall visual appeal is great. Rich honey brown color.
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(2.3 × 1.5 × 1.2 in - 5.8 × 3.8 × 3.0 cm) 2.8oz / 79g
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Crystal collecting at Hermannstein, near Wetzlar in Hesse, is closely associated with the historic workings and quarries of Simberg, where extraction of limestone and manganese ores exposed mineralized cavities and alteration zones. The former Malapertus Mine, an ancient manganese operation abandoned in 1931, produced manganite, pyrolusite, and psilomelane, while the adjoining limestone quarry has yielded calcite, dolomite, quartz, nontronite, and manganese oxides. Although Hermannstein was not primarily a commercial source of gemstones, quarrying and mining provided opportunities for recovery of crystallized material, particularly quartz and calcite, from fractures and cavities within the limestone.
This specimen is a bed of lustrous calcite crystals with a very unique character in texture. Towards the terminations, the overgrowths become lustrous and complex. From the JHoppner Collection, dated April 1984.
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(3.5 × 2.5 × 1.8 in - 8.8 × 6.3 × 4.5 cm) 6.1oz / 173g
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Rudny, in Kazakhstan’s Kostanay Region, is a major iron-mining center whose extensive deposits have also produced a diverse assemblage of collectible mineral crystals. The principal localities, particularly the Sokolovskoe Iron Mine and Sarbai Deposit, have yielded quartz—including amethyst, chalcedony, and agate—as well as calcite, siderite, fluorite, and a range of zeolites and related silicates. Rather than representing a conventional gemstone-mining industry, crystal production at Rudny has largely resulted from the excavation of iron and polymetallic ores, with well-developed crystals recovered from cavities, veins, and altered zones exposed during mining. The district is particularly significant to mineral collectors for its amethyst, zeolite-group minerals, and unusual silver-bearing mineral assemblages from Sarbai, making specimens from Rudny an important by-product of Kazakhstan’s long-established metallurgical mining industry.
This specimen is a bed of lustrous calcite crystals! A gentle coloring of yellow accents the gleaming calcites. Perfect example! Accompanied by an old Rocksmith’s label.
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(2.8 × 2.3 × 1.8 in - 7.1 × 5.8 × 4.5 cm) 4.3oz / 120g
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Daye in Hubei Province is part of the historic Daye mining district, where mineral extraction has exposed skarn and hydrothermal zones capable of producing well-crystallized specimens. Crystal-bearing cavities within the district have yielded quartz, calcite, fluorapophyllite, pyrite, and other secondary minerals, with the Fengjiashan Mine particularly noted for collectible quartz and associated species.
This specimen is a bed of lustrous lenticular calcite crystals overgrowing scalenohedral crystals! A gentle coloring of hematite accents the gleaming calcites. Perfect example!
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(2.8 × 2.4 × 1.6 in - 7.1 × 6.0 × 4.0 cm) 5.0oz / 143g
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Mining at the Santa Eulalia Mining District began in 1703 and has continued intermittently for more than three centuries, making it one of Mexico’s historically important silver and base-metal districts. The principal ores occur as carbonate-replacement bodies hosted by limestone and dolomite, with the district’s West and East Camps containing extensive lead-silver-zinc mineralization in mantos, chimneys, and skarn-related deposits. Over its long history, Santa Eulalia has produced more than half a billion troy ounces of silver along with several million tonnes of lead and zinc, establishing the district as a major contributor to Mexico’s mining industry. Mining has also exposed numerous oxidized cavities and mineralized openings that have yielded exceptional specimens, including selenite, fluorite, rhodochrosite, adamite, and other secondary minerals prized by collectors.
Mysterious and alluring yellow calcite coated limonite! The crystals seemingly erupt from the central portion of the matrix with great form. A sparkling example of Mexico!
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(2.7 × 2.2 × 1.3 in - 6.8 × 5.5 × 3.3 cm) 3.3oz / 93g
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Mining at the Santa Eulalia Mining District began in 1703 and has continued intermittently for more than three centuries, making it one of Mexico’s historically important silver and base-metal districts. The principal ores occur as carbonate-replacement bodies hosted by limestone and dolomite, with the district’s West and East Camps containing extensive lead-silver-zinc mineralization in mantos, chimneys, and skarn-related deposits. Over its long history, Santa Eulalia has produced more than half a billion troy ounces of silver along with several million tonnes of lead and zinc, establishing the district as a major contributor to Mexico’s mining industry. Mining has also exposed numerous oxidized cavities and mineralized openings that have yielded exceptional specimens, including selenite, fluorite, rhodochrosite, adamite, and other secondary minerals prized by collectors.
Sparkling calcite coats limonite epimorphs of prior generation calcites! Likely from the Potosi mine, where the limonite epimorphs selenite, but not confirmed. A sparkling example of Mexico!
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(3.3 × 2.6 × 1.2 in - 8.3 × 6.6 × 3.0 cm) 4.0oz / 113g
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Mining at Naica, Chihuahua, Mexico, began in the late eighteenth century and developed primarily around its lead, zinc, silver, and other metallic ores rather than selenite. During the expansion of underground workings in the early twentieth century, miners encountered caves containing large, transparent selenite crystals, including the famous Cave of Swords discovered in 1910. Continued mine development and dewatering led to the discovery of the Cave of Crystals in 2000, where gypsum crystals exceeding 11 meters in length represent some of the largest known natural crystals on Earth. Although these spectacular crystals were exposed through mining, they were not the primary object of extraction, and many Naica selenite specimens available to collectors originated from smaller cavities elsewhere in the mine rather than from the famous Cave of Crystals.
This specimen is a beautiful example of selenite with excellent isolation on matrix.
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(3.8 × 2.0 × 2.2 in - 9.6 × 5.0 × 5.5 cm) 3.1oz / 87g
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The Ojuela Mine is located at the base of the northeast escarpment of the Sierra de Mapimi, about five miles southeast of the town of Mapimi, Durango. It is one of Mexico's largest mines, and one may spend weeks travelling underground without revisiting the same spot. The mine has been worked to shallow depths for rich secondary silver ores since 1600.
Clustered on a limonitic matrix sits a lustrous and abrasion free example of calcite! Striking shine contrasts the dark brown limonite. An excellent example from this famous Mexico locality
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(3.3 × 3.1 × 1.1 in - 8.3 × 7.8 × 2.7 cm) 6.8oz / 195g
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The Holcim Quarry in Lockport, New York, is a well-known collecting site developed in Silurian-aged dolostone of the Niagara Escarpment. It has produced a wide range of mineral specimens, most notably well-formed dolomite crystals along with calcite, fluorite, sphalerite, and occasional galena. Many of these minerals occur lining vugs and fractures, often showing sharp crystal form and attractive color contrasts. Access has been limited in recent years, but material from the quarry remains widely represented in both private and museum collections.
This specimen is a classic miniature example of dolostone matrix hosting small yellow sphalerite crystals. the crystals are extremely fluorescent orange under long wave(365nm) light. This attractive specimen displays naturally quite well and is a wonderful example of historic New York locales. Accompanied by an older generic label.
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(1.7 × 1.6 × 1.4 in - 4.3 × 4.0 × 3.5 cm) 1.7oz / 50g
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The Ojuela Mine is located at the base of the northeast escarpment of the Sierra de Mapimi, about five miles southeast of the town of Mapimi, Durango. It is one of Mexico's largest mines, and one may spend weeks travelling underground without revisiting the same spot. The mine has been worked to shallow depths for rich secondary silver ores since 1600.
Isolated on a limonitic matrix sits a delicate and beautiful example of Rosasite! Striking blue green color contrasts the dark brown limonite.
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(2.8 × 1.8 × 1.0 in - 7.1 × 4.5 × 2.5 cm) 2.4oz / 69.8g
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Small town and former commune (municipality) on the northeast coast of Elba; on its territory are the iron mines exploited since Etruscan times.
This specimen is a piece of history. The Schortman’s label denotes it being sold at their november 1947 Exhibition and sale in New York. Followed by a Christopher O’Neill label (#232), a collection renowned for high quality thumbnails and miniatures. The back of Chris’s label notes he obtained it from LHC in 2005, likely Lawrence H Conklin. It is an otherwise classic and typical example of the ancient iron mines of Rio Marina!
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(1.5 × 0.9 × 0.7 in - 3.8 × 2.2 × 1.7 cm) 1.1oz / 32g
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Located just 18 miles south of Ennis, Montana sits the largest talc mine in the world; the Yellowstone Talc Mine. Currently operated by Margis Talc, the mine produces in excess of 250,000 tons of high purity talc annually. The deposit sits in the ultra mafic rock of the Madison range, and is not accessible to the general public.
This specimen is a complex, yet elegant example of a quartz cluster with hematite and chalcedony coating. The chalcedony fluoresces wonderfully! Collected on the high wall with permission by Bud Erhle years ago, this piece represents a rare sighting of crystals from a mine that otherwise is not well known for specimen production.
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(3.1 × 1.6 × 1.6 in - 7.6 × 4.0 × 4.0 cm) 4.5oz / 128g
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The Tsumeb mine is regarded in the mineral collecting world by many as the greatest locality overall. Including a wide range of species, rich history, and type locale specimens, the depth of collectability often goes far beyond the visual appeal. The mine was first discovered on January 21, 1893, by Matthew Rogers. It was initially described as “The Green Hill”. The mine would operate for just over a century, shutting down in 1996 for economic reasons. Tsumeb is considered a world-class quality producer of Adamite, Azurite, Cerussite, Dioptase, Mimetite, Tennantite, and many other species. It is home to 76 Type Locality Minerals.
A rich and beautiful cluster of mottramite coating white calcite! The deep green of this specimen is remarkable and striking. The calcite crystals are entirely coated but still display crystal habit. Mounted to an acrylic base and accompanied by dealer label from Northeast Geological Supply
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(1.3 × 2.3 × 1.0 in - 3.3 × 5.8 × 2.5 cm) 2.3oz / 66g (with base)
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The Tsumeb mine is regarded in the mineral collecting world by many as the greatest locality overall. Including a wide range of species, rich history, and type locale specimens, the depth of collectability often goes far beyond the visual appeal. The mine was first discovered on January 21, 1893, by Matthew Rogers. It was initially described as “The Green Hill”. The mine would operate for just over a century, shutting down in 1996 for economic reasons. Tsumeb is considered a world-class quality producer of Adamite, Azurite, Cerussite, Dioptase, Mimetite, Tennantite, and many other species. It is home to 76 Type Locality Minerals.
This is an absolutely classic example of malachite pseudomorphing azurite with bayldonite association, from the world renowned Tsumeb Mine. A focal crystal presents itself centralized in the matrix with aesthetics. Mounted to an acrylic base.
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(1.7 × 1.1 × 1.2 in - 4.3 × 2.7 × 3.0 cm) 1.6oz / 45g
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Situated in the Radersburg District of Montana, the underground workings explored a narrow orebody along a fault planecutting Paleozoic Quadrant Quartzite. The mine produced ores valued for their silver and lead content, but only a roughly 200 meter long adit was ever worked.
This is a classic miniature example of vanadinite from the Jo Jo mine. Small, red, hexagonal crystal scatter across a matrix of altered Madison quartzite. Every angle of the specimen displays some level of crystallization
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(1.9 × 1.3 × 1.4 in - 4.8 × 3.3 × 3.5 cm) 1.4oz / 40g
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History of the Crazy Sphinx is spotty, but specimens have been dated back to the early 30s in some collections. The deposit is a very small, mineralized zone in a skarn zone related to the broader boulder batholith. The mine is still worked for specimens in the present day, the main prizes being cobalt blue colored spinel and white grossular garnets. Minor amounts of clinozoisite, schorl, and clintonite are also present. The deposit is extremely difficult to mine, and virtually all spinel occur encased entirely in garnet or vesuvianite. It is extremely rare to see otherwise. Only a handful of localities worldiwde produce blue spinel, with this being the best USA locale!
This specimen features a deep blue colored spinel group, which has been revealed through careful matrix prep. While the crystals are small, they have superb color and are nicely terminated for the locale. Quite a nice example of a Montana classic.
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(1.4 × 1.2 × 0.9 in - 3.5 × 3.0 × 2.2 cm) 1.7oz / 49g
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Initially discovered in 1887, the Summit Mine lies in the Radersburg district in the southern part of Broadwater County. The finest hemimorphite in the USA come from this locality, as well as numerous other interesting and uncommon minerals. The mine has been inactive for some time and lies on private property.
This is a classic example of Mottramite on descloizite matrix. Only occuring at depth in one area of the mine, this material is quite rare indeed. Accompanied by the label of Chris Tucker. Chris is undoubtedly the collector of the specimen, as he wrote several articles on the mine as well as is known to have collected there.
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(2.7 × 1.6 × 1.0 in - 6.8 × 4.0 × 2.5 cm) 2.8oz / 78g
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The many mines of Butte amount to over 11,000 miles of workings below the city. Without specific provenance, it’s nearly impossible to associate specimens with specific mines. The “richest hill on earth” first originated as a mining camp for gold but would later rapidly develop into one of the world’s most historic sulfide deposits. Rich veins of covellite, chalcocite, enargite, and other minerals as thick as 100 feet were stoped out, supplying the world with a large portion of its industrial copper.
This is a fairly simple, yet elegant example of pyrite with a light tarnish to the surface. The tarnish gives a blue color, which accents the gold of the pyrite quite uniquely. From the deep Butte mines, this piece represents rich history in the mining world.
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(2.0 × 1.2 × 1.0 in - 5.0 × 3.0 × 2.5 cm) 3.1oz / 87g
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Revenue Flats is a plateau crosscut by numerous quartz veins and mining prospects. Early work focused on gold mining, and continues in the present day at a small scale. However, the area became known and popular to collectors in the early 1970s upon publication by Doug Toland. Largely, the crystals at this locality are clear, but some can be amethyst as well. Japan law twins are extremely rare and seldom seen.
This is an example of amethyst overgrowing micro quartz needles, which are visible at one face of the specimen. The color is pale, as is most of the amethyst from this locality. Accompanied by the label of the late Chuck Borland.
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(1.6 × 0.9 × 1.2 in - 4.0 × 2.2 × 9.6 cm) 1.2oz / 35g
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The Black Pine Mine was an industrial polymetallic deposit hosted in Missoula quartzite and spokane shale. The mine had an operational history older than Montana’s statehood, first discovered in 1882, with a rocky ownership to follow. It changed hands and operations several times before its final shutdown in 2018. Professional specimen collecting only occurred during a short window in the 80s, under contract agreement with Inspiration Copper and Duane Johnson. The site now lies on private state land and is an active DEQ cleanup site.
Complex mineral assemblages were present in the Black Pine. Heavily oxidized veins hosted a vast array of copper, zinc, and iron minerals, among others. Primary metallics were tetrahedrite, pyrite, hubnerite, sphalerite, and galena. Through oxidation, some of the most unique combinations and examples in the world were produced, including 3 type locality species and the largest examples of veszelyite in the world.
This is a small but superb example of iron dominant oxides coating a plate of quartz crystals. Micro crystals of beudantite are present with jarosite, hematite, and heavy goethite. A lesser seen example, as the copper oxides tend to dominate the environment.
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(2.6 × 1.6 × 0.9 in - 6.6 × 4.0 × 2.2 cm) 2.0oz / 57g
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The PC Mine has minimal history beyond is specimen production, which first dates to 1983. At that time, the privately owned land was partly lease from Forest Klies by W. C. Van Laer, until 1987. In 1988, Pete Knudsen, Bryant Harris, and Elvis “Buzz” Gray acquired the mining lease and Knudsen would later assume full ownership in 1990. By 2005 any workable breccia was considered mined out. The deposit sits at river level on a private land cabin site. The mine was most well known for its production of Japan Law twin crystals, and tourmaline included quartz crystals. In addition, excellent gem quality sphalerite was also present, with galena, anhydrite and pyrite as well.
This specimen classic doubly terminated quartz with just the right amount of tourmaline! The aesthetics speak for itself. Some abrasion is present, but is largely accepted from the locale due to the nature of the deposit. Excellent crystal, this is a great representative piece of a now closed, and classic Montana locale!
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(2.3 × 0.9 × 1.0 in - 5.8 × 2.2 × 2.5 cm) 1.6oz / 44g
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Agate deposits in the Dryhead area of the Pryor Mountains in Big Horn County, Montana, became known to collectors in the mid-20th century when prospectors followed scattered agate nodules found on the surface back to their source layers. These nodules, later called Dryhead agates, formed within sedimentary rocks and often contain colorful banding, although only a small portion produce gem-quality material. Beginning in the 1950s, rockhounds and small claim holders conducted limited mining, typically removing nodules by hand or with light equipment. Interest from collectors grew through the 1960s and 1970s, and for a period the site operated as a fee-dig area where visitors could search for agates themselves. As the more accessible material became scarce and the location proved difficult to work economically, organized mining activity declined during the 1980s and 1990s. Today, most Dryhead agates circulating among collectors were recovered during those earlier decades of exploration and small-scale mining, however mining operations have been recently reopened at a small scale!
This specimen is a classic example of face-polished Dryhead agate with intense orange banding. Not automatically polished, the gently domed edges reveal this piece to be handwork, a show of more love and attention. This nodule has some excess matrix, which could be worked further to reveal more pattern! This specimen comes from 2025 production. UV is shortwave reaction (254nm)
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(2.7 × 1.4 × 1.7 in - 6.8 × 3.5 × 4.3 cm) 5.2oz / 146g
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The Burlington Mine in Butte, Montana, developed during the late nineteenth and early twentieth centuries as part of the rapid expansion that followed the region’s early copper discoveries. It was one of many properties absorbed into the industrial network controlled by the Anaconda Copper Mining Company, which drove large-scale underground development across the district. Workings at the Burlington followed steep, mineralized veins at depth, contributing to Butte’s reputation as a major source of copper and associated metals. Over time, operations shifted and declined as richer ores were depleted and mining methods changed throughout the district. By the mid-twentieth century the mine had ceased activity, but it remains part of the broader historical framework of the Butte mining district.
This specimen features a bubblegum pink rhodochrosite crystals with a lesser amount of milky quartz points in the periphery. The specimen has been saw formatted, as many of the specimens from this site are just small vugs in otherwise large rock mass. The formatting does allow two excellent display angles however. Rhodochrosite from Butte is difficult to come by as good crystals, this is a great opportunity at an affordable piece!
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(3.3× 1.6 × 1.4 in - 8.3 × 4.0 × 3.5 cm) 4.9oz / 138g
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The Santa Eulalia District in Chihuahua, Mexico is widely known among collectors for its abundant and varied mineral specimens, particularly from carbonate replacement deposits hosted in limestone. Over decades of mining, the area produced fine examples of fluorite, calcite, galena, sphalerite, and aragonite, often noted for their clarity, color, and well-formed crystal habits. Even as large-scale mining declined, older material from Santa Eulalia continues to circulate, maintaining the district’s reputation as a classic source of attractive cabinet specimens.
Perched atop delicate hemimorphite blades sits uniquely peach-yellow colored mimetite. Often mislabeled as Ojuela Mine, mimetite specimens from the Santa Eulalia district have remarkable variety. The glittery aesthetic of this specmin give it an other wordly feel. A Perfect acquisition for any collection.
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(3.2 × 1.9 × 1.6 in - 8.1 × 4.8 × 4.0 cm) 4.9oz / 138g
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Partridge Island in Canada has a history shaped by both maritime use and small-scale mineral interest rather than large, sustained mining. Early attention to the island’s rocks came from local observers and visiting geologists who noted mineral occurrences along its exposed coastal outcrops. These findings led to limited collecting and informal extraction, but no major commercial development took hold due to the island’s size and logistical constraints. Over time, the locality became better known among collectors for its specimens than for any industrial output.
Analcime from Canada seems to be some of the best in the world, with localities like Partridge Island producing such spectacular crystals. This section of matrix hosts several great analcime crystals with different character each. The largest being matte, but of good size. The perched alone crystal of excellent lustre and translucency. Perfect for any collector!
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(2.1 × 2.0 × 1.4 in - 5.3 × 5.0 × 3.5 cm) 2.0oz / 57g
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The Burlington Mine in Butte, Montana, developed during the late nineteenth and early twentieth centuries as part of the rapid expansion that followed the region’s early copper discoveries. It was one of many properties absorbed into the industrial network controlled by the Anaconda Copper Mining Company, which drove large-scale underground development across the district. Workings at the Burlington followed steep, mineralized veins at depth, contributing to Butte’s reputation as a major source of copper and associated metals. Over time, operations shifted and declined as richer ores were depleted and mining methods changed throughout the district. By the mid-twentieth century the mine had ceased activity, but it remains part of the broader historical framework of the Butte mining district.
This specimen features a vug of pale pink yet gemmy rhodochrosite crystals with a lesser amount of milky quartz points in the periphery. The specimen has been saw formatted, as many of the specimens from this site are just small vugs in otherwise large rock mass. The formatting does allow two excellent display angles however. Rhodochrosite from Butte is difficult to come by as good crystals, this is a great opportunity at an affordable piece!
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(3.1 × 2.9 × 1.5 in - 7.8 × 7.3 × 3.8 cm) 5.7oz / 160g
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The pegmatites of the greater boulder batholith region have long been known by mineral collectors for their unique and diverse quartz forms. Considered by some to have more quartz varieties than any other in the world, the region has been heavily prospected by field collectors since the 1800s and still to this day new discoveries are made.
Coming from the collection of W. C. Van Laer (no labels included) is a quartz crystal coated in late stage goethite saturated quartz, also referred to as onegite. First observed in the Lake Onega region of Russia, onegite localities worldwide are few. Chris Van Laer found 2 deposits of note, one in the Delmoe lake area that produced unique specimens such as this. Obtained from and estate which contained a portion of Chris’s collection. This piece is non permanantly glued to a small acrylic base
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(2.1 × 1.4 × 1.1 in - 5.3 × 3.5 × 2.7 cm) 1.8oz / 51g
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The Jackson Crossroads Amethyst Mine in Wilkes County, Georgia, is widely regarded as one of the premier amethyst-producing localities in the United States, known for its distinctive and highly collectible quartz crystals. The deposit formed through hydrothermal processes within altered granitic or volcanic host rock, where mineral-rich fluids created pockets lined with crystals in clay-filled cavities. Amethyst specimens from the site are especially noted for their sharp crystal form, glassy luster, and striking color zoning, often showing deep purple tips over lighter or colorless interiors. Material from the early 2000s brought the locality international attention, with many pieces displaying gem-quality transparency and complex growth features. Today, although access has varied over time, specimens from Jackson Crossroads remain highly sought after by collectors for their combination of color, clarity, and aesthetic appeal.
This is a richly colored single crystal of amethyst displaying zoning in both terminations. Detatched from matrix, this crystal stands alone proudly. Non-permanently affixed to white 3D printed base. Ex Persson Rare Minerals.
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(1.5 × 1.0 × 1.1 in - 3.8 × 2.5 × 2.7 cm) 1.3oz / 37g
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The Holcim Quarry in Lockport, New York, is a well-known collecting site developed in Silurian-aged dolostone of the Niagara Escarpment. It has produced a wide range of mineral specimens, most notably well-formed dolomite crystals along with calcite, fluorite, sphalerite, and occasional galena. Many of these minerals occur lining vugs and fractures, often showing sharp crystal form and attractive color contrasts. Access has been limited in recent years, but material from the quarry remains widely represented in both private and museum collections.
This specimen is a classic miniature example of dolostone matrix hosting small yellow sphalerite crystals. the crystals are extremely fluorescent orange under long wave(365nm) light. This attractive specimen displays naturally quite well and is a wonderful example of historic New York locales. Accompanied by an older generic label.
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(2.3 × 2.1 × 1.5 in - 5.8 × 5.3 × 3.8 cm) 3.2oz / 88g
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Mineral specimens from the Pack Rat Mine in Montana became known primarily through small-scale collecting rather than large commercial production. Early miners occasionally saved attractive pieces of crystallized minerals encountered while following the ore veins, and some of these specimens later entered private collections. Interest from mineral collectors increased during the mid-twentieth century as reports of well-formed crystals and unusual mineral associations circulated among hobbyists and dealers. Because the workings were relatively small, most specimens recovered from the mine were limited in number and often obtained directly from underground pockets or from material on nearby dumps. A portion of the better examples gradually found their way into mineral shows, museum collections, and the hands of regional collectors. Today, specimens attributed to the Pack Rat Mine are considered relatively uncommon and are usually associated with material recovered during earlier periods of mining and collecting. While the mine is actively held as claim, no known current specimen production exists.
This specimen is a classic plate of baryte, crystals showing on all sides of the specimen. A late-stage crust encases some of the crystals but overall, visual appeal is great. Rich honey brown color. Accompanied by a handwritten label by Chuck Borland, and the label of Tom and Judy Tucker.
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(3.1 × 1.9 × 1.0 in - 7.8 × 4.8 × 2.2 cm) 3.9oz / 110g
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Agate deposits in the Dryhead area of the Pryor Mountains in Big Horn County, Montana, became known to collectors in the mid-20th century when prospectors followed scattered agate nodules found on the surface back to their source layers. These nodules, later called Dryhead agates, formed within sedimentary rocks and often contain colorful banding, although only a small portion produce gem-quality material. Beginning in the 1950s, rockhounds and small claim holders conducted limited mining, typically removing nodules by hand or with light equipment. Interest from collectors grew through the 1960s and 1970s, and for a period the site operated as a fee-dig area where visitors could search for agates themselves. As the more accessible material became scarce and the location proved difficult to work economically, organized mining activity declined during the 1980s and 1990s. Today, most Dryhead agates circulating among collectors were recovered during those earlier decades of exploration and small-scale mining, however mining operations have been recently reopened at a small scale!
This specimen is a classic example of face-polished Dryhead agate with intense orange banding. Not automatically polished, the gently domed edges reveal this piece to be handwork, a show of more love and attention. This nodule has almost no excess matrix, despite a natural back, which is of utmost desirability! This specimen comes from 2025 production. UV is shortwave reaction (254nm)
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(2.6 × 2.2 × 0.8 in - 6.6 × 5.5 × 2.0 cm) 3.2oz / 90g
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Berg Aukas is a historic mineral deposit located in northern Namibia, about 40 km south of the town of Grootfontein. Geologically, the deposit is a hydrothermal lead-zinc-vanadium ore body hosted in dolostone of the Neoproterozoic Otavi Group. Mineralization formed when metal-rich fluids moved through fractures and dissolution cavities in the carbonate rocks, depositing sulfide minerals such as galena and sphalerite along with unusual secondary minerals. The mine is especially famous for producing rare vanadium minerals, including the bright red lead vanadate descloizite and other colorful oxidation-zone species that formed when the ore was exposed to weathering.
Mining at Berg Aukas began in 1913 and expanded significantly during the mid-1900s, eventually becoming one of the world’s most important sources of vanadium-bearing minerals. Although commercial mining ceased in 1978, Berg Aukas remains well known among geologists and mineral collectors for its exceptional mineral diversity and specimen quality.
This specimen is a plate of fairly large descloizite crystals clustered together across the matrix. Carrying with it a Colorado Geologic Industries label, which dates between the 1960s and 1980s when the company was actively dealing. The specimen does have some broken crystals unfortunately. Largely, the display area is in good condition, however.
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(3.5 × 3.1 × 2.1 in - 8.9 × 7.8 × 5.3 cm) 10.5oz / 299g
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The N’Chwaning II Mine is located in the Kalahari Manganese Field of Northern Cape Province, South Africa, one of the world’s largest manganese-producing regions. Geologically, the ore occurs within the Hotazel Formation of the Griqualand West Sequence, part of the Paleoproterozoic Transvaal Supergroup, where stratiform manganese deposits formed in ancient marine sediments about two billion years ago. The ore body consists of gently dipping, strata-bound manganese layers that have been strongly faulted and hydrothermally altered, producing complex mineral assemblages and zones of high-grade ore. Rhodochrosite, Manganite, Ettringite, and several other rare minerals occur in cavities and fractures within the ore, making the mine famous among mineral collectors.
The broader N’Chwaning deposit was discovered during exploration of the Kalahari manganese field in the mid-20th century, and the N’Chwaning II shaft began production in 1981 as an underground manganese mine operated by Assmang. Today, the mine remains an important producer of manganese ore and is internationally renowned for yielding some of the finest mineral specimens from the Kalahari Manganese Field.
This specimen features a modest sized plate of manganese matrix with rich coverage of olmiite accented by bulfonteinite. Of course, the olmiite fluoresces quite nicely, in a deep red under long wave light. A classic example of not only a highly regarded locale, but uncommon species worldwide.
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(3.5 × 2.5 × 1.4 in - 8.9 × 6.3 × 3.5 cm) 6.6oz / 187g
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The Zapot Mine, also known as the Zapot pegmatite, is located in the Gillis Range of Mineral County, Nevada, about 25 km northeast of Hawthorne. Geologically, the deposit occurs within Jurassic–Cretaceous plutonic rocks, where pegmatite bodies intruded into reddish-gray quartz monzonite and formed cavities containing minerals such as amazonite, smoky quartz, and topaz. The original discovery of minerals in the area is uncertain, but modern exploration began when prospector D. J. Gray rediscovered the site in the early 1980s and staked the Sun No. 5 claim. In 1986 the claim was purchased by Harvey Gordon, who renamed it the Zapot Pegmatite and developed it primarily for mineral specimens and gemstones, making it the only known amazonite-topaz mining operation in Nevada. The pegmatite is still mined to this day!
This specimen is a textbook example of granite druse material. Smoky quartz erupts from a formatted matrix of albite. minor inclusions of schorl are also present. The formatting allows for great display without aid.
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(3.7 × 2.5 × 1.8 in - 9.4 × 6.3 × 4.5 cm) 8.1oz / 230g
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The oumjrane mining area is host to many different artisan operations, making attribution to any specific mine difficult. The area is however known for producing great quality baryte, pyrite, and other mineral specimens.
This is a cluster of milky quartz crystals lightly dusted in pyrite crystals. Lastly to top the pie off, free standing baryte blades displaying gentle zoning adorn the quartz. In large, the condition of this specimen is fantastic.
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(4.4 × 2.7 × 1.2 in - 11.1 × 6.8 × 3.0 cm) 9.2oz / 260g
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Madan is a large Pb-Zn-Ag mining district comprised of over 40 different operations. The ancient deposit has only most heavily been exploited in the last half a century, leading to many fine quality sulfide mineral specimens. The Batantsi mine is particularly known for its unique and good quality rhodochrosite.
This specimen is a bed of needle quartz with “puffballs” of pale pink calcite scattered throughout. The specimen displays well, giving the appeal of a valley of crystals.
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(4.5 × 3.5 × 1.5 in - 11.4 × 8.9 × 3.8 cm) 13.9oz / 393g
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The Kelly Mine, located in the Magdalena Mining District of Socorro County, New Mexico, emerged in the late 19th century as a major producer of lead, zinc, silver, and other metals, driving the rapid growth of the boomtown of Kelly. Mining began in the late 1870s, and expansion accelerated in the 1880s with improved rail connections that linked the district to regional and national markets. By the early 20th century, large companies such as the Empire Zinc Company consolidated operations, with zinc and lead becoming the mine’s primary products. As ore bodies were depleted and metal prices fluctuated, mining activity declined during the 1920s and 1930s. By the mid-1940s the town was largely abandoned, leaving behind prominent mine structures and ruins that today mark Kelly as a notable New Mexico ghost town and historic mining site. Final commercial mining ceased in 1957. The site is still mined for mineral specimens privately.
This example of smithsonite from the Kelly Mine is a much lesser seen brown, which is actually a classic color for older Kelly material! With a label detailing provenance to 1967, this specimen could also be from the 3 level the field collector label notes, but is denoted as 5 level. Lustrous spherules of smithsonite fill a vug in limonitic matrix. Overall, this is an amazing addition to any collector of antique, USA, or old mine locales!
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(3.4 × 2.4 × 1.6 in - 8.6 × 6.0 × 4.0 cm) 5.2oz / 147g
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The Little Giant Mine is a historic lead zinc and copper producer. All commercial production dates prior to 1904, with specimen collecting continuing the decades after closure. Most specimens come from the #3 tunnel, formally known as the Upper Giant Prospect. Hosted in St. Regis quartzite, the mine is located approximately 1.6 miles southeast of Mullan.
This is a classic example of pale, green, elongated pyromorphite crystals on matrix. Crystallization is present on two naturally displaying faces of the specimen. A must have for the collector of Idaho, lead minerals, PNW locales, US Classics, or antique specimens!
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(3.75 × 1.5 × 2.25 in - 9.5 × 3.8 × 5.7 cm) 7.7oz / 218g
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Via Mindat:
“This is a very old locality (circa 1897) at the Moore's Station (no longer exists) of the Reading RR. Specimens are found only in old collections.
The mineral listed for Moore’s Station indicate that the locality is in trap rock. The site of the former Moore’s Station, on the Reading (Conrail) Railroad is in an area underlain by the sediments of the Passaic formation. The quarry that is the probable locality is located approximately 1 mile north along the railroad from the former station site and ½ mile north of the Hopewell barite mine. It is also approximately 1 mile west of the intersection of Rt. 518 and Rt. 518 spur near the western end of Hopewell boro. The coordinates given are for the quarry, not the former station.
Here, just off the railroad tracks to the east is a small, shallow quarry that was opened in the 19th century and has been abandoned for many years. It is marked on a topographic map of the “Vicinity of Flemington”, dated 1887. The quarry is located in the diabase dike that extends from the western end of the Rocky Hill Sill, cuts upward through the Passaic Formation and is cut off by the Hopewell Fault, a major intrabasin fracture. Proximity of the quarry to this fault may explain why a significant number of mineral specimens were preserved from such a small excavation.
There is longstanding confusion between this locality and “Moore” a site along Rt. 29, very near the Delaware River and the northwestern end of Baldpate Mountain, approximately 3.7 airline miles west – southwest of the Moore’s Station on the Reading (Conrail) Railroad. The 1887 map, cited above, calls the place near the river “Moores”. The USGS topographic map calls it “Moore” but the road map published by Hagstrom calls it Moore’s Station. Trap Rock Industries refers to their large adjacent quarry in the northwest end of Baldpate Mountain as the Moore’s Station Quarry. The TRI quarry, reactivated it in 1982 after 50 years of dormancy, is also cut by splays from the Hopewell Fault and has produced mineral specimens. It was apparently not yet active at the time the 1887 map was published. Because of antiquity of the specimens and the confusion over the name the actual source of any specimen labeled “Moore’s Station” needs to be given some additional scrutiny.” (Moore's Station, Hopewell Township, Mercer County, New Jersey, USA)
Featured here is a matrix coated primarily in stilbite but accented by nearly colorless calcites. Ex William Wall Collection, via Alexandria Mineral Shop. A USA classic from the northeast that seldom comes available! The provenance adds great bonus.
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(3.3 × 2.4 × 1.1 in - 8.4 × 6.3 × 2.8 cm) 4.1oz / 116g
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Cooper & Stanley (1991):
"Of little commercial significance, this mine is one of the most famous mineral localities in the world. Lead minerals consisting predominantly of phosphate-bearing mimetite (campylite) in a gangue of quartz, barite and manganese oxides were deposited in an east-west vein. Other minerals occur rarely, the most well-known being plumbogummite.
Although mimetite specimens from Dry Gill are recorded from at least 1830 there is no record of commercial ore mining here until a lease was taken by Hugh Lee Pattinson, inventor of a cupellation process for the desilvering of lead. Pattinson began work in 1846, driving an adit on the vein where it crosses Dry Gill beck near the foot of the gill. He raised a few hundred tons of "colored lead ore" but gave up the work in the 1850's. The property was subsequently tried by various operators, none of whom had much success. The mine was last worked in 1869.
The finest mimetite specimens were collected in the 19th century but, although increasingly hard to find, some fine material has been obtained since, particularly in the 1970's. However, the mine is notoriously unstable, cold and wet, and there have been a number of accidents involving collectors. No one has been critically injured but the incidents have highlighted the dangers of the old workings in the Caldbeck Fells."
This specimen features a quartz matrix decorated in matte yellow barrel shaped mimetite crystals. From the collection of Barrie Bieler.
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(3.1 × 2.4 × 1.1 in - 8.0 × 6.1 × 2.9 cm) 4.3oz / 120g
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The La Viesca Mine in the La Collada mining area near Huergo, Siero in Asturias, Spain is a historically significant fluorite (fluorspar) mine first developed in the early 20th century. Originally worked by local companies under rights held by Felgueroso Hermanos and later by Fluoruros S.A., the mine produced industrial-grade fluorite and notable collector-quality crystals through much of the 20th century, gaining renown among mineral enthusiasts worldwide. After a period of inactivity following its closure in the 1980s, mining resumed in 2004 under Preparación Minera del Norte (Preminor S.L.) via an inclined ramp to access deeper fluorite veins. The site has yielded exceptional specimens, including world-class pockets such as the “Geoda de Las Monjas” discovered in 2010, prized for their size and clarity.
This example of fluorite and quartz present a simple yet elegant aesthetic form one of Spain’s most famous fluorite locales. Gently colored glassy fluorites cluster atop a quartz druse which protrudes with subtlety. Overall, the specimen is in good condition, with only a couple crystals displaying damage but nothing visually striking.
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(3.8 × 2.5 × 1.5 in - 9.6 × 6.3 × 3.81 cm) 7.2oz / 205g
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The alpine clefts of Großer Ringkogel in Austria are famous for the hematite and quartz specimens they produce. Hosted in the lower Tauern Mountain Range, the area is host to almost 350 known species of minerals across its numerous sublocations.
This specimen is a beautiful example of specular hematite “roses” free formed on matrix. Natural display aesthetics are of great quality. Accompanied by a beautiful handwritten and hand trimmed European label as well.
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(4.17 × 2.0 × 1.69 in - 10.5 × 5.1 × 4.2 cm) 5.8oz / 166g
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Madan is a large Pb-Zn-Ag mining district comprised of over 40 different operations. The ancient deposit has only most heavily been exploited in the last half a century, leading to many fine quality sulfide mineral specimens.
This specimen is a matrix of classic madan. Lustrous sphalerite transitions bronze color as it nears the chalcopyrite. Quartz crystals erupt from the sulfides with speckled themselves with calcite. While there is abrasion present, the aesthetics are spectacular at display angle.
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(4.5 × 2.3 × 1.5 in - 11.4 × 5.8 × 9.6 cm) 10.1oz / 286g
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