Calcite

specimen number:
9507049

location:
Leiping, Guiyang Co., Chenzhou, Hunan, China

description:
Chocolate brown lustrous rhombohedral crystals of calcite across the top of matrix. A second-generation of colorless glassy crystals are present. In good condition. The dark color is due to the presence of hematite.

Leiping Mine in Guiyang County, Chenzhou, Hunan, China, is a localized mineral source best known among collectors for producing high-transparency optical calcite crystal clusters often anchored on a gossan matrix. Precise historical records detailing the exact opening and closing dates of the Leiping Mine are not widely documented in mainstream geological literature, though commercial mineral specimens from the site gained wider recognition through modern Chinese mineral exports. Geologically, the region sits within the rich Nanling metallogenic belt of southern China, where complex magmatic-hydrothermal activities, granitic intrusions, and fluid-rock interactions with Paleozoic carbonate sequences and limestone host rocks have driven the formation of diverse polymetallic, skarn, and secondary gossan environments conducive to crystal growth.

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