This museum quality Amethyst Quartz Cluster with calcite crystals features naturally formed, lustrous and fully terminated with highly reflective f...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

Classic old-European specimen with a lustrous combination of well defined pyritohedral crystal cluster of Italian pyrite on hematite matrix. This u...

Beautiful specimen from Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Parallel formation of amethyst crystals with great transparency and ...

AAA quality, rare find translucent perfect bullseye yellow Aragonite stalactite slice. Polished on front and rear sides. Aragonite is a naturally o...

From Guilin Prefecture, Guangxi Zhuang Autonomous Region, China Aesthetic stalactitic formation of translucent tanish-orange scalenohedral calcite ...

Beautiful specimen from Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Parallel formation of amethyst crystals with great transparency and ...

Doubly-terminated, stacked cluster of Herkimer Quartz crystals from Herkimer County, New York. This aesthetic specimen, translucent to transparent ...

From Nandan County, Hechi, Guangxi, China Long cluster of large, blocky crystals of yellow-tan barite crystals. The barites are translucent and sho...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

From Jalgaon District, Maharashtra, India    Classic example of wheat-sheaf-shaped cluster of colorless bowtie stilbite crystals. Stilbite crystals...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

Large, museum-quality, lustrous transparent deep golden calcite with small sphalerite crystal at the base of the crystal. Double terminated scaleno...

From Nandan County, Hechi, Guangxi, China Lustrous grayish-yellow pseudo-rhombohedral barite crystals in parallel orientation. The barites are tran...

Beautiful specimen from Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Parallel formation of amethyst crystals with great transparency and ...

AAA museum quality, hand polished fully terminated cluster of lustrous crystallized gem translucent golden citrine variety quartz crystals with vib...

From Nasik District, Maharashtra, India Lustrous Large transparent yellow rhombohedral calcite crystal with textured striated crystal faces. Most o...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

This unique Pyrite Concretion from Dongchuan District, Yunnan Province, China features sparkling, sharp, modified metallic crystals arranged in con...

From Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire)Lustrous transparent green acicular malachite crystals lining cavities on Cu...