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

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

Museum quality, rare undulating formation of a gemmy transparent amethyst cluster with a cluster of spherical purple fluorite. These amethyst cryst...

Large 2.5 inch metallic lustrous cubic Spanish Pyrite crystal on matrix. This specimen has sharp, well-defined terminations where the crystal faces...

From Graves Mountain, Lincoln County, Georgia Lustrous translucent blue lazulite crystals in white matrix with several partial lazulite crystals ar...

From Chenzhou Prefecture, Hunan Province, China Translucent pale-pink crystals of sharp flattened rhombohedral manganoan calcite in parallel format...

From Chenzhou Prefecture, Hunan Province, China Translucent pale-pink crystals of sharp flattened rhombohedral manganoan calcite in parallel format...

From Nuristan, Laghman Province, Afghanistan This excellent, Manganotantalite is rare find. Most of the crystal appears to be black, but the "glow"...

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 Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

From Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

From Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

From Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

From Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

From Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

from Fujin, China       Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite crystal are fully term...

A classic and very attractive specimen of Pyrite from Huanzala Mine, Huanuco Province, Peru. Complex pyritohedron cluster with striated crystal fac...

From Huanzala Mine, Huallanca District, Huanuco Department, Peru Beautiful lustrous golden metallic Pyrite crystal cluster with well defined octahe...