From Nagar, Hunza Valley, Gilgit District, Gilgit-Baltistan, PakistanLarge lustrous terminated transparent aquamarine crystal, the blue gem variety...

From Elmwood Mine, Tennessee, United States. Large, museum-quality, lustrous transparent deep golden calcite with sphalerite crystal at the base of...

From Huanggang Mine, Keshiketeng Qi, Chifeng, Inner Mongolia, China Pink mangano calcite flower. The pink color of the calcite is caused by mangane...

An exquisite, pristine formation of Ram’s Horns calcite, hard to find and very rare. It is a complete floater in perfect condition.    Weight: 1.4 ...

From Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan Prismatic blue afghanite crystals exposed on the face o...

Lustrous transparent yellow-brown barite crystals completely covering one side of a double-sided plate of matrix. Yellow-metallic pyrite or chalcop...

From Huanggang Mine, No. 6 Shaft, Keshiketeng Qi, Chifeng, Inner Mongolia, China Transparent dark-blue fluorite crystals covering front of gray qua...

Lustrous transparent deep golden brown calcite crystal on large sphalerite matrix. Large 6" double terminated scalenohedral twinned on the C-axis w...

From Nagar, Hunza Valley, Gilgit District, Gilgit-Baltistan, PakistanLarge lustrous terminated transparent aquamarine crystal, the blue gem variety...

From Kamoya Mines, Lualaba Province, Democratic Republic of the Congo Several bright metallic crystals of rare carrollite running through white cal...

From Bouismas Mine, Zagora, Morocco This is an exceptional example of well crystallized native Silver on Calcite with Cuprite crystals. The Silver ...

From Bouismas Mine, Zagora, Morocco This is an exceptional example of well crystallized native Silver on Calcite. The Silver exhibits a well define...

From Bouismas Mine, Zagora, Morocco This is an exceptional example of well crystallized native Silver on Calcite with metallic silver rhombic Cupri...

From Bouismas Mine, Zagora, Morocco This is an exceptional example of well crystallized native Silver on Calcite on matrix. The Silver exhibits a w...

From Bouismas Mine, Zagora, Morocco This is an exceptional example of well crystallized native Silver on Calcite on matrix. The Silver exhibits a w...

From Bouismas Mine, Zagora, Morocco This is an exceptional example of well crystallized native Silver on Calcite on matrix. The Silver exhibits a w...

From Bouismas Mine, Zagora, Morocco This is an exceptional example of well crystallized native Silver on Calcite on matrix. The Silver exhibits a w...

From Xianghualing Cassiterite Mine, 32 km north of Linwu, Hunan Province, China Large, museum-quality, cubic transparent purple fluorite crystals w...

From Castelinho Mine, near Frederico Westphalen, Alto Uruguai, Rio Grande do Sul, Brazil Colorless translucent scalenohedral calcite crystals on ma...