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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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
ORDERS SHIP MONDAYS
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 malachite coating white dolomite! The contrast of this specimen is remarkable and striking. The dolomite crystals while small, are extremely sharp and gemmy where crystallography is present. Mounted to an acrylic base and accompanied by dealer label from Persson Rare Minerals noting origin of Burton Ford collection
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(1.8 × 2.0 × 0.6 in - 4.5 × 5.0 × 1.5 cm) 1.9oz / 53g (with base)
ORDERS SHIP MONDAYS
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.
Extremely lustrous and aesthetic, this is a stepped calcite crystal preferentially coated in duftite! Classic Tsumeb calcite material. The specimen is affixed to an acrylic base, but this is not permanent, should separation be desired.
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(2.0 × 1.6 × 1.5 in - 5.0 × 4.0 × 3.8 cm) 3.3oz / 94g (measures 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.
A rich and beautiful cluster of large mimetite crystals! This specimen is significant for the species, and locality. Accompanied by the labels of Christopher O’Neill, Lawrence Conklin, and Mineral Kingdom of Woodmere (Zweibels), this piece dates back to the 70s, when it was sold for 300 dollars then, based on the cards! A special piece for any collector, especially the Tsumeb afficianado.
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(1.5 × 1.5 × 0.9 in - 3.8 × 3.8 × 2.2 cm) 1.2oz / 34g
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The N’tola Mine is an important historic copper locality located within the highly mineralized Mindouli District of the Republic of the Congo, a region known for extensive copper, lead, and zinc deposits hosted within ancient carbonate formations. Mining throughout the greater Mindouli area began during the era of French colonial administration, with exploration and extraction increasing considerably from the late 1940s through the 1960s as numerous small deposits along the limestone ridge near Mindouli were developed. The N’tola workings were among these operations and became recognized for producing oxidized copper ores, particularly attracting attention from mineral collectors for exceptional dioptase specimens. In addition to dioptase, the locality has also yielded notable occurrences of dolomite, duftite, and mimetite, contributing to its reputation as a significant mineral specimen source.
Featured here is a specimen of dioptase with dolomite and mimetite. Richly colored dioptase crystals preferentially coat the matrix with slight manganese oxides. Small yellow mimetite crystals scatter throughout the dolomite druze. The overall aesthetics are great for this small cabinet specimen. Some damage is present among the dioptase, as commonly is for larger tsumeb material. Crudely formatted on the back, likely from mining. The specimen comes affixed to an acrylic base by hot glue.
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(3.9 × 2.4 × 2.5 in - 9.9 × 6.1 × 6.3 cm) 14.5oz / 411g
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