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

From West Boltsburn Mine, Rockhope District, Weardale, England Beautiful specimen of purple fluorite crystals  covered with overgrowth of siderite ...

From Huanggang Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia, China Slender plate of lustrous yellow metallic chalcopyrite microcrystals on matrix....

A massive, 52 lb geode with large rhombic Calcite crystals beside a pseudomorphic quartz after Calcite crystals with pink Heulandite crystals in a ...

Beautiful specimen from Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Lustrous deep-purple transparent amethyst quartz crystals surrounded...

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

From Mibladen, Atlas Mountains, Khénifra Province, Morocco  Here is an exceptional world class specimen of a cluster of hexagonal crystals of dark ...

From Defiance Mine, Costello Mine group, Gleeson, Turquoise District, Dragoon Mts, Cochise Co., Arizona, USAClassic aesthetic specimen of lustrous ...

Large cluster of silver-metallic arsenopyrite crystals with highly reflective luster with unusual parallel growth aggregates with small isolated ro...

Transparent 3d cubic purple fluorite crystals overgrown atop a cluster of lustrous sphalerite crystals . on matrix. The fluorite has rich purple zo...

Three large cubic pyrite crystal across inter grown perched on Basalt matrix. The pyrite crystals have smooth faces and sharp edges, stands upright...

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

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

from Hunza Valley, Gilgit-Baltistan, Pakistan   Transparent to translucent deep pink hexagonal fluorapatite crystal on an intergrown cluster of mus...

From Xianghualing, Hunan Province, China   Internally clear transparent crystal cluster of vivid green cubic fluorite crystals on matrix. The matri...

From Greenlaws Mine, Victoria Flatt, Weardale, County Durham, England Lustrous transparent-to-translucent purple-gray cubic fluorite crystals. The ...

From De'an mine, Wushan, De'an Co., Jiujiang Prefecture, Jiangxi Province, ChinaLarge cluster of gem transparent deep purple dodecahedron fluorite ...

From Huanggang Mines, Hexigten Banner, Inner Mongolia A.R., China Lustrous transparent colorless calcite crystals with microscopic red hematite inc...

This large specimen from Bisbee, Arizona USA contains an eye-catching blend of electric-blue Azurite crystals and green Malachite. Displays differi...

From Sweetwater Mine, Reynolds Co., Missouri USALarge, classic thumbnail specimen of cubic galena crystal with overgrowth of octahedral galena crys...

From Jalgaon,  Maharashtra, India   Large cabinet specimen of rich golden yellow calcite crystal cluster partially covered in lustrous gem apophyll...

From Cave-in-Rock District, Hardin County, Illinois Very aesthetic large transparent cubic fluorite crystals with white barite overgrown on yellow ...

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

From Mibladen, Atlas Mountains, Khénifra Province, Morocco  Here is an exceptional world class specimen of a cluster of hexagonal crystals of dark ...