The Rubtsovskoye polymetallic sulfide deposit, situated within the Rubtsovsky ore district of the northwestern Rudny Altai, occurs within a major volcanotectonic depression associated with an ancient back-arc island system. The deposit is hosted by a complex assemblage of volcanic and sedimentary rocks, including lava flows, volcanic breccias, rhyolitic porphyry tuffs, and a succession of argillaceous, siliceous, calcareous, and carbon-rich siltstones alongside arkosic sandstones and volcaniclastic sediments. Its near-surface oxidation zone became especially notable for producing exceptional mineral specimens, including well-formed examples of cuprite, native copper, azurite, and malachite, while certain upper sections yielded unusually rich iodide mineral assemblages. The locality is particularly renowned among mineral collectors for producing some of the largest cuprite and marshite crystals ever documented worldwide.
Commercial extraction at the Rubtsovskoye Mine commenced in 2005, with active mining continuing for roughly a decade before operations ceased in 2015 and the underground workings were subsequently closed. Although ore extraction ended, the processing facilities at the site remained operational for the treatment of externally sourced material. Despite its relatively limited size, the deposit was characterized by exceptionally high-grade mineralization and was effectively exhausted within approximately ten years of production.
This is a fairly simple, yet elegant cuprite crystal! This specimen barely passes light with a strong torch. Cuprite is light sensitive, and UV exposure can black out translucent sections
Thank you so much for viewing! Please message for any further information
(1.1 × 0.8 × 0.8 in - 3.5 × 2.0 × 2.0 cm) 0.9oz / 28g
ORDERS SHIP MONDAYS
The Rubtsovskoye polymetallic sulfide deposit, situated within the Rubtsovsky ore district of the northwestern Rudny Altai, occurs within a major volcanotectonic depression associated with an ancient back-arc island system. The deposit is hosted by a complex assemblage of volcanic and sedimentary rocks, including lava flows, volcanic breccias, rhyolitic porphyry tuffs, and a succession of argillaceous, siliceous, calcareous, and carbon-rich siltstones alongside arkosic sandstones and volcaniclastic sediments. Its near-surface oxidation zone became especially notable for producing exceptional mineral specimens, including well-formed examples of cuprite, native copper, azurite, and malachite, while certain upper sections yielded unusually rich iodide mineral assemblages. The locality is particularly renowned among mineral collectors for producing some of the largest cuprite and marshite crystals ever documented worldwide.
Commercial extraction at the Rubtsovskoye Mine commenced in 2005, with active mining continuing for roughly a decade before operations ceased in 2015 and the underground workings were subsequently closed. Although ore extraction ended, the processing facilities at the site remained operational for the treatment of externally sourced material. Despite its relatively limited size, the deposit was characterized by exceptionally high-grade mineralization and was effectively exhausted within approximately ten years of production.
This is a fairly simple, yet elegant cuprite crystal! This specimen barely passes light with a strong torch. Cuprite is light sensitive, and UV exposure can black out translucent sections
Thank you so much for viewing! Please message for any further information
(1.1 × 0.8 × 0.8 in - 3.5 × 2.0 × 2.0 cm) 0.9oz / 28g
ORDERS SHIP MONDAYS
