from Moscona Mine,Solis, Corvera de Asturias, Villabona mining area, Spain Translucent rhombehdral crystals of colorless calcite large matrix of tr...

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

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

Lustrous cluster of rhombohedral formation of calcite with heavy inclusions of brick red hematite. The calcite crystal faces are fully terminated w...

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

Dachang Sn-polymetallic ore field, Nandan Co., Hechi Prefecture, Guangxi Zhuang Autonomous Region, ChinaLarge unusual rhombic crystal of translucen...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosauru...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa.Cretaceous Age 65 million years Carcharodontosaurus...

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

From Wagholi Quarry, Maharashtra, India Vibrant royal blue cavansite crystals in spherical aggregates on quartz microcrystal-coated matrix with sma...

From Aurangabad, Maharashtra, India Massive complex cluster of fully crystallized green heulandite in rosette-shaped rounded aggregates. The green ...

From La Grasta Mine, Delia, Caltanissetta Province, Sicily, Italy Colorless translucent prismatic celestine crystals with lustrous crystal faces, o...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of ...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of ...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Complex cluster of highly reflective lustrous transparent cerussite crystals in a 60 d...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Lustrous translucent beige-colored bladed cerussite crystals that are repeatedly twinn...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Large v-formation of transparent slightly smoky cerussite crystals with no attached ma...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Lustrous translucent beige-colored bladed cerussite crystals that are repeatedly twinn...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Lustrous translucent beige-colored bladed cerussite crystals that are repeatedly twinn...

This specimen originates from the Mining District in the Patagonia Mountains, Santa Cruz County, Arizona, USA. It features a cluster of vibrant, fi...

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

From Flambeau Mine, Rusk County, Wisconsin, USA Iridescent crystals of metallic chalcopyrite on quartz crystals. Bright and lively color of blues ,...

From Flambeau Mine, Rusk County, Wisconsin, USA Iridescent crystals of metallic chalcopyrite on quartz crystals. Bright and lively color of blues ,...

From Edong Mining District, Daye, Hubei, China Cluster of sharp scalenohedral calcite crystals partially covered with lustrous iridescent metallic ...