$450Median
2838Sold (12 mo)
$480Last sale
Bornite with Calcite
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Ships from USA
A grouping of large rhombohedral translucent to almost transparent calcite crystals, these twinned, measuring to 3.5 cm in size on a thin plate of matrix with many metallic crystal groupings of bornite measuring to 1.0 cm in size. I think a really choice combination piece. In good condition as seen.
Mining at Dzhezkazgan, Kazakhstan centers on one of the worlds largest sediment hosted copper deposits, developed extensively during the Soviet era to supply copper for industry and defense. The deposits occur in red bed sandstones of Carboniferous age and contain copper minerals such as chalcocite, bornite, and chalcopyrite, along with minor silver and other elements. Large scale underground mining began in the early 20th century and expanded significantly after the 1930s with the construction of processing plants and smelters that supported the growth of the city of Dzhezkazgan. Today the district remains a major copper producing region operated by Kazakhmys, continuing its long history as a key center of Central Asian mining.
Product details
SizeSmall Cabinet
Dimensions8.5 x 7.0 x 3.0 cm
Listed on07/16/2026
SKU8282330
Current owner
WM
Weinrich MineralsFeatured
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Mineral guide
Learn about Calcite
diverse shapes, colors, and optical quirks; widely available yet scarce elite pieces from Elmwood and Charcas drive collecting value and display.Regional guide
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