From Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Parallel formation of amethyst crystals with great transparency and rich purple color w...

From Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Parallel formation of amethyst crystals with great transparency and rich purple color w...

From Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Single formation of amethyst crystals with great transparency and rich purple color wit...

From Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Two parallel formation of amethyst crystals on matrix, with great transparency and rich...

From Lonavala Quarry, Pune District, Maharashtra, India Lustrous transparent-to-translucent large green apophyllite crystals overgrown on matrix. T...

From Pashan Hill Quarry, Pune District, Maharashtra, India Sparkling cluster of green apophyllite crystals in a radiating formation on matrix lined...

Sparkling cluster of green apophyllite crystals in a radiating formation on matrix lined with creme-colored stilbite crystals in aggregates. The ap...

Pristine cluster of colorless apophyllite crystals. The crystals vary from milky white to water-clear at the terminations. this is a stalactitic fo...

From Deveti Septemvri Mine, Madan District, Rhodope Mountains, Bulgariaina Rare large specimen of crystals of arsenopyrite with quartz. The arseno...

From Bou Beker Mine, 21 km SSE of Oujda, Errachidia Province, Morocco An aesthetic specimen of flat disc shaped concretions of bright royal blue az...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, NamibiaComplex intersection cluster of Azurite crystals with areas altered to green malachite ...

From  Liufengshan Mine, Guichi, Anhui Province, China Lustrous translucent vibrant royal blue crystals of azurite partially lining a gossan matrix ...

Beautiful Brazilian banded agate with an exposed cavity, lined with lustrous colorless quartz crystals. Both sides polished to a high yield to a gl...

From Ganzhou, Jinagxi, China Superb water-clear wedge-shaped barite crystals covering one face of tan-colored matrix. The barite crystals formed ov...

From Sterling Mine, Stoneham, Weld County, Colorado Cluster of intersecting transparent many prismatic blue barite crystals in sphalerite matrix. ...

From Machow Mine, Tarnobrzeg, Poland Diverging sprays of transparent, golden barite crystals on matrix with yellow iron. The barite crystals are el...

From Yaogangxian Mine, Nanling Mountains, Hunan Province, China   Large gem transparent crystals of blue fluorite crystals with glassy crystal sur...

From Huanggang Fe-Sn deposit, Hexigten Banner, Ulanhad League, Inner Mongolia, China   Large stalactitic formation of quartz covered by a second ge...

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

From Yaogangxian Mine, Nanling Mountains, Hunan Province, China   Transparent cluster of light green fluorite crystals with glassy crystal surface...

This fascinating specimen formed when gemmy calcite crystals grew in the natural pocket formed by a buried fossil clamshell. The interior of the sh...

This fascinating specimen formed when gemmy calcite crystals grew in the natural pocket formed by a buried fossil clamshell. The interior of the sh...

Xianghualing-Xianghuapu Mines, Hunan, China Unusual, unique one of a kind specimen of calcite on purple green fluorite. Cubic fluorite crystals in ...

From Edong Mining District, Daye, Hubei, China Large cluster of scalenohedral calcite with a secondary coating of lustrous iridescent metallic chal...