Creedite

specimen number:
9506541

location:
Qinglong Mine, Dachang, Qinglong Co., Qianxinan, Guizhou, China

description:

Really very fine for the species, lustrous sparkling purple crystals of creedite attractive across this breccia matrix. In very good condition. Brightly fluorescent.

The Qinglong Mine in Dachang, Guizhou, China, is a major low-temperature hydrothermal antimony and gold deposit whose local extraction history dates back roughly to the late Ming and early Qing periods, with systematic state prospecting beginning in 1953 and continuing today as an active industrial mining district. Geologically, the deposit is situated within the northwestern Youjiang Basin, where mineralization is structurally controlled and primarily hosted in a distinctive altered, siliceous, and argillic horizon known as the Dachang layer. This ore-bearing layer is developed directly at the contact zone between Middle Permian Maokou Formation limestone below and Upper Permian Emeishan basaltic rocks above. The district features extensive faulting, brecciation, and fluid-rock interactions involving organic-rich matter and paleo-oil reservoirs, producing significant concentrations of stibnite, quartz, fluorite, and various secondary minerals.

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