From Madan District, Rhodope Mountains, Bulgaria Sculptural formation of lustrous yellow-metallic pyrite crystals with Sphalerite. The pyrite cryst...

Complete agate nodule sliced through the middle and polished to show the bright internal colors and banded patterns. The color varies from red to b...

From Deveti Septemvri Mine, Madan District, Rhodope Mountains, Bulgaria Sparkling cluster of lustrous translucent gray quartz crystals overgrown on...

This stunning piece is super sparkly specimen. A substantial cluster of black amethyst chalcedony with unique stalactite formations. The edges of t...

From Casapalca District, Huarochiri Province, Peru Large lustrous striated cubic yellow-metallic pyrite crystals with black-metallic sphalerite cry...

From Pachapaqui District, Bolognesi Province, Ancash Department, Peru This well defined cluster metallic luster Tetrahedrite crystals with isolated...