Fluorite

specimen number:
8311475

location:
Yindu Mine, Inner Mongolia, China

description:

Beautiful miniature twinned crystal grouping of gemmy fluorite. Little attached muscovite is present. Minor quartz present as well. In very good condition.

The Yindu Mine, located in the Hexigten Banner of the Chifeng Prefecture in Inner Mongolia, China, is a significant metallic deposit situated within the Great Hinggan Mountains mineralization belt. Geologically, the deposit is characterized as a hydrothermal vein system hosted in Permian volcanic and sedimentary rocks, where mineralization is closely associated with Mesozoic igneous activity. The mine is highly regarded by collectors for its exceptional fluorite specimens, which typically occur as sharp, cubic crystals in shades of vibrant green, teal, or purple, often exhibiting remarkable transparency and phantom growths. Historically, mining and quarrying at the Yindu Mine have primarily targeted silver, lead, and zinc ores, with organized industrial extraction expanding significantly during the early 21st century. While bulk ore production remains the economic driver, the recovery of world-class fluorite specimens has brought the locality international acclaim in the mineralogical community. As of 2026, the Yindu Mine continues to be an active producer, recognized for both its industrial output and its contribution of high-quality fluoride minerals to the global market.

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