$950Median
223Sold (12 mo)
$135Last sale
Dioptase
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Gorgeous lustrous green crystals of dioptase measuring to 1.5 cm in size mostly covering the top of this matrix. The specimen is in great condition.
The mines around Reneville, located in the Pool Department of the Republic of the Congo within the Niari Basin, is historically renowned for its rich polymetallic mineral deposits. Geologically, the area consists of sedimentary rock formations where intensive supergene oxidation processes have yielded exceptional secondary copper mineralization, most notably world-class crystal specimens of dioptase and malachite. Historically, the deposits of this region were worked by local African communities for centuries before European contact, serving as a vital medium for regional trade. During the late 19th and early 20th centuries, French colonial prospectors initiated formal industrial extraction, targeting the high-grade copper carbonates that characterize the district.
Product details
SpeciesDioptase
SizeCabinet
Dimensions13.5 x 7.0 x 3.0 cm
Listed on07/16/2026
LocalityRepublic of the Congo, Pool Department, Renéville
SKU9506322
Current owner
WM
Weinrich MineralsFeatured
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Mineral guide
Learn about Dioptase
vivid emerald-green crystals with glassy luster, often on white calcite or quartz; highly collectible due to color, clarity, and brittleness.Regional guide
Dioptase from Renéville
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