From Nuristan Province, Afghanistan Double terminated crystal of translucent to transparent, colorless spodumene with isolated cluster of albite, s...

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

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

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

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 6" penetrating twinned crystals of transparent rich golden yellow calcite with silky luster faces and sharp terminations on druzy quartz matr...

From Huanggang Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia, China Lustrous translucent gray-white with transparent colorless calcite crystals.  ...

From Pingwu beryl mine, Huya township, Mount Little Xuebaoding, Pingwu Co., Mianyang, Sichuan, China Yellowish-brown rhombohedral siderite crystals...