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

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

From Olinghouse Mine, 6030 bench, 813 pit, Washoe County, Nevada Many crystals of fine, wire crystals of native gold in spongy patches on greenish ...

From Guilin Prefecture, Guangxi Zhuang Autonomous Region, China Aesthetic stalactitic formation of translucent tanish-orange scalenohedral calcite ...

From Jalgaon District, Maharashtra, India  Classic example of cream colored cluster of bowtie stilbite crystal on matrix. Stilbite crystals are tra...

From Aurangabad, Maharashtra, India Classic example of cream colored cluster of bowtie stilbite crystals in tapered wheat-sheaf-shaped aggregates o...

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

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Classic pristine specimen of lustrous white tarnowitzite crystals ranging from small t...

From Sleeping Beauty Mine, Miami District, Gila County, Arizona Flat specimen of pure sleeping beauty turquoise with bright blue color. Sleeping Be...

From Nasik District, Maharashtra, India Penetrating twinned crystals of transparent golden yellow calcite with silky luster faces and sharp termina...

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

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

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

Lustrous transparent deep golden calcite crystal on sphalerite matrix, double terminated scalenohedral twinned on the C-axis with well defined re-e...

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

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

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

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

Large aesthetic scalenohedral formation of rich deep golden calcite crystals in a parallel formation on matrix embedded with metallic sphalerite cr...

Lustrous transparent deep golden calcite crystal. Large double terminated scalenohedral twinned on the C-axis with well defined re-entrant faces, w...

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

From Mibladen, Atlas Mountains, Khénifra Province, Morocco Large specimen of lustrous translucent red hexagonal vanadinite crystals in a complex in...

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

From Touissit Mine, 21 km SSE of Oujda, Jerada Province, Oriental, MoroccoLarge cluster of translucent yellow bladed wulfenite crystals over tan-co...