Fluorite and Calcite from the Huanggang deposit, China

Contributed by: FMS Admin
Date: Mar 7th, 2026
Locality: No. 6 Mine, Huanggang Fe-Sn deposit, Hexigten Banner (Keshiketeng Co.), Chifeng City (Ulanhad League; Chifeng Prefecture), Inner Mongolia, China (See on Mindat)

Description:
Calcite and fluorite, fluorescent red and blue under longwave UV light.

Originally published by Wish Wang on Nature’s Rainbows.

Fluorescence under longwave UV light.

Normal light.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

• Fluorescence under Longwave (365nm LED) UV light: Red

• Fluorescence under Longwave (365nm LED) UV light: Blue