A beautiful classic specimen of lustrous Thunder Bay amethyst with rich inclusions  of brick red hematite. Distinctive solid even brick red color t...

Lustrous transparent deep golden calcite crystal on sphalerite matrix. Large double terminated scalenohedral twinned on the C-axis with well define...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

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

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

From Mibladen, Haute Moulouya Basin, Zeida-Aouli-Mibladen belt, Midelt Province, Morocco Unique lustrous translucent red-orange vanadinite crystals...

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 Agoudal Mine, Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate, Morocco Lustrous translucent pink cobalt-rich calcite crystals ...

This top museum quality Amethyst Quartz geode slice features naturally formed, lustrous and fully terminated with highly reflective faces and a dee...

From Minggang Mine, Xinyang Prefecture, Henan, China Translucent purple fluorite in botryoidal formation with sculptural hemispherical aggregates c...

From Nasik District, Maharashtra, India Large translucent to transparent apophyllite crystal cluster with twinned crystals of calcite on matrix wit...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural velvet botryoidal formation of solid velvet...

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

From Shigar Valley, Skardu, Baltistan, Gilgit-Baltistan, Pakistan Large single crystal of transparent sherry colored Topaz with sharp complex basal...

From Shigar Valley, Skardu, Baltistan, Gilgit-Baltistan, Pakistan Large single crystal of transparent sherry colored Topaz with sharp complex basal...

Superb water-clear wedge-shaped barite crystals covering one face of tan-colored matrix. The barite crystals formed over botryoidal black oxide min...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Lustrous beautiful complex rhombic crystal cluster of pink smithsonite on matrix. Crys...

From Minggang Mine, Xinyang Prefecture, Henan, China Translucent purple fluorite in botryoidal formation with sculptural hemispherical aggregates c...

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

From Xiaoqinggou, Datong, Shanxi, China Sculptural formation of twisted wire-crystals of native silver (naturally occurring silver crystals) with ...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From Reb Embers Mine Erving, Franklin County, Massachusetts USA Three large almandine garnet in silvery graphite matrix. The almandine garnet is we...

From Nasik District, Maharashtra, India Lustrous cluster of intersecting acicular sprays of scolectite crystals with Stilbite matrix. The scolecite...