Explore museum-quality mineral specimens from around the world. Each piece has been carefully selected by Grant Powell for its exceptional beauty, rarity, and scientific significance.
Arsenopyrite, Quartz, Calcite
Arsenopyrite with Quartz and Calcite – Bright Metallic Crystal Cluster
Yaogangxian Mine, Hunan Province, China
Arsenopyrite
Arsenopyrite - Rainbow-Iridescent - Iconic Single-Pocket Specimen
Yaogangxian Mine, Chenzhou District, Hunan Provinc...
