Large Oxidized Pyrite Crystals with Quartz – Hekou, Yunnan, China – 344g Orthoclase While it is not quite

While it is not quite facet grade

Locality: Zacatecas

brassy metallic luster

Measurement:  22

Large Oxidized Pyrite Crystals with Quartz – Hekou, Yunnan, China – 344g Orthoclase While it is not quiteA visually striking specimen featuring dark metallic crystals set among a dense cluster of quartz from Hekou, Yunnan, China. The larger crystals display deep reddish brown to black coloration and retain the sharp crystal form of pyrite. While the exact identity of these crystals has not been confirmed, they are believed to represent oxidized pyrite based on a cut section from a similar specimen that revealed something that looks like fresh metallic