From Tieshan District, Huangshi Prefecture, Hubei Province, China Lustrous translucent large blocky golden rhombohedral crystals of calcite in a st...

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

From Elmwood Mine, Tennessee, United States. Large, museum-quality, lustrous transparent deep golden calcite with sphalerite crystal at the base of...

From Castelinho Mine, near Frederico Westphalen, Alto Uruguai, Rio Grande do Sul, Brazil Colorless translucent scalenohedral calcite crystals on ma...

Large specimen of a radial formation of emerald green apophyllite crystals beside a intersecting crystals of transparent rhombic calcite crystals a...

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

Large shallow vug with a transparent penetrating twinned golden calcite on druzy chalcedony matrix in stalactitic formations with several isolated ...

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

From Huanggang Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia, China Several intersecting doubly terminated quartz crystals colored green by inclusi...

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

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

from Jalgaon,  Maharashtra, India   Large specimen of lustrous green apophyllite crystals in isolated clusters on druzy chalcedony matrix. The apop...

From Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia Scintillating formation of spherical aggregates of quartz with translucent green conic...

From Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, MichiganLustrous translucent parallel scalenohedral calcite crystal...

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

From Nasik District, Maharashtra, India   Large translucent double penetrating twinned crystals of calcite on translucent to transparent apophyllit...

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

This exceptional single calcite crystal features a sharp, elongated form with crisp surface striations and outstanding clarity. Delicate manganese ...

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

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

Lustrous vibrant orange-yellow showy, sharp "Porcupine" calcite cluster. The calcites are perfectly terminated and damage free.   Weight: 4.7 lbs, ...

 Pune District, Maharashtra, India   Large cabinet geode of bright pink heulandites in translucent wheat sheave aggregates intergrown with pink sti...

From Casapalca District, Huarochiri Province, Peru Large lustrous striated cubic yellow-metallic pyrite crystals with black-metallic sphalerite cry...

From Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

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

from Leiping Mine, Guiyang, Hunan, China Translucent calcite crystals with red-brown color due to microscopic hematite inclusions. Several V-twinne...

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

Xianghualing-Xianghuapu Mines, Hunan, China Unusual, unique one of a kind specimen of calcite on purple green fluorite. Cubic fluorite crystals in ...

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

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

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

from Bombay Quarry, Mumbai, Maharastra, India   Heres a 2.5 inch triple penetrating crystal cluster of optical Calcite perched atop a drusy quartz ...

From Edong Mining District, Daye, Hubei, China Large cluster of scalenohedral calcite with a secondary coating of lustrous iridescent metallic chal...

From Leiping Mine, Guiyang, Hunan, China Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite cryst...

From Bombay Quarry, Mumbai (Bombay), Maharastra, India   Large hemispherical formation of thin needle like colorless mesolite crystals on matrix li...

Lustrous transparent powder blue thin pyramidal crystals in parallel formations on matrix inter grown with several isolated crystals of calcite in ...

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

From Nasik District, Maharashtra, India Tapered cluster of lustrous transparent colorless scolecite crystals standing upright in transparent pink-b...

From Aurangabad, Maharashtra, India Large pale snow white pseudomorph crystal of gem transparent calcite crystals coated with sparkling barite micr...

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

From Elmwood Mine, Tennessee, United States. Large, museum-quality, lustrous transparent deep golden calcite with sphalerite crystal at the base of...

From Nasik District, Maharashtra, India Large geode with a transparent penetrating twinned golden calcite on druzy chalcedony matrix in stalactitic...

from Fujin, China       Internally flawless crystal cluster of optical-grade colorless calcite on gossan matrix. The calcite crystal are fully term...

Massive twinned rhombohedral calcite crystals with rich orange to yellow color all throughout. Fully terminated with lustrous crystals faces with s...

From San Eugenio, Artigas Dept., Uruguay   Large 4'' x 2.5" scalenohedral crystal of calcite on amethyst matrix accented by isolated cluster of col...

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

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

From Bombay Quarry, Mumbai (Bombay), Maharastra, India   Large hemispherical formation of thin needle like colorless mesolite crystals lined with g...