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

Transparent green cubic fluorite crystals with slightly textured crystal faces that are composed of microscopic octahedral faces. The bright green ...

Transparent green cubic fluorite crystals with slightly textured crystal faces that are composed of microscopic octahedral faces. The bright green ...

From San Pedro Mine, San Pedro Corralitos, Chihuahua, Mexico Well defined undamaged specimen of olive yellow-green ball aggregates of mimetite crys...

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

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

Lustrous translucent red-brown sphalerite crystals in an elongated cluster perched on a thin slab of gray matrix coated with quartz microcrystals. ...

From Elk Creek, Meade County, South Dakota Large, museum-quality, lustrous transparent deep golden calcite on matrix. Double terminated scalenohedr...

From Mibladen, Atlas Mountains, Khénifra Province, Morocco  Here is an exceptional world class specimen of lustrous crystal luster of red-orange va...

From Stanley Butte, San Carlos Indian Reservation, Graham County, Arizona Well crystallized, classic cluster of greenish-brown andradite garnet cry...

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

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

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...

From Aurangabad, Maharashtra, India Large pale whale tail chalcedony calcite pseudomorph crystal of gem transparent calcite crystals coated with sp...

From Wulashan Au deposit, Wulashan mining district, Binhe New District, Baotou City (Baotou Prefecture), Inner Mongolia, China. Beautiful specimen ...

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

Fully terminated single crystal of transparent gem quality spodumene var. Kunzite. The crystal faces are composed of smaller lustrous parallel crys...

Fully terminated single crystal of transparent gem quality spodumene var. Kunzite. The crystal faces are composed of smaller lustrous parallel crys...

Large single crystal of transparent, pink spodumene Kunzite with with steep termination on the top, and complex termination on the bottom. Kunzite...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Lustrous transparent deep-green dioptase crystals lining a shallow cavity in brown mat...

Excellent matrix specimen of doubly-terminated golden calcite crystals with larger intersecting crystal with multiple terminations. This calcite cr...

From Tekhdi, Madhya Pradesh, India Lustrous transparent purple parallel Quartz Var. crystals with red hematite encrusted phantoms inside water clea...

Penetrating twinned crystals of transparent golden yellow calcite with silky luster faces and sharp terminations. The twin orientation is well defi...