Pyrite Concretion from Dongchuan District, Yunnan Province, China

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in concentric "rings" on a spherical shale base.

Weight: 545.6 grams, Dimensions: 3.5 x 3 x 2.5 inches