This specimen features glassy, lustrous fluorite in a beautiful sea-blue color situated on a matrix of warm brown pyrrhotite. Not to be missed, this piece also contains chalcopyrite, quartz, and a cloak of translucent, square calcite crystals on the back. Under ultraviolet light, the fluorite fluoresces bright purple, and the calcite a vivid pink.

Locality: Yindu Iron Mine, Yindu, Hexigten Banner, Chifeng, Inner Mongolia, China

Dimension: 18 x 11 x 7 cm