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

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

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

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

From Mogok, Sagaing Division, Myanmar (Burma) An excellent complex crystal of red Spinel crystals with deep cherry-red to translucent strawberry-re...

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

From Bombay Quarry, Mumbai (Bombay), Maharastra, India Hemispherical cluster of hair-thin okenite crystals in a geode lined with calcite along side...

From Mt. Xueboading, Pingwu Co., Mianyang Pref., Sichuan Prov., ChinaA single crystal of bright orange octahedrals of scheelite on matrix of silver...

From Xuebaoding Mountain near Pingwu, Sichuan Province, ChinaTranslucent orange scheelite crystals on plate of limonite-stained muscovite mica crys...

From Berg Aukas Mine, 16 km ENE of Grootfontein, Otavi Mountain Land, Namibia Lustrous, well crystallized black-brown descloizite crystals in arrow...

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

From Diamantina, Minas Gerais, Brazil Large transparent colorless quartz crystals with surfaces composed of many smaller parallel crystal faces. In...

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

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

This museum quality Amethyst Quartz Cluster with calcite crystals features naturally formed, lustrous and fully terminated with highly reflective f...

From Bou Azzer District, Anti-Atlas Mountains, Ouarzazate, Morocco Lustrous rounded cluster of vibrant pink scalenohedral calcite crystals. The cal...

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

Long cluster of large, blocky crystals of yellow-tan barite crystals. The barites are translucent and show internal growth phantoms   Weight: 451.7...

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

From Nandan County, Hechi, Guangxi, China Large plate of golden barite crystals to covers all sides, with minimal attachment point on matrix.   Wei...

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

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

From Agrigento Province, Sicily, Italy Classic and beautiful plate of bright gemmy translucent rich yellow sulphur crystals over translucent white ...

From Nasik District, Maharashtra, IndiaAesthetic specimen of lustrous double terminated pinkish-red Heulandite crystals in a fan shaped formation i...