Classic specimen of long, tapering calcite crystals, locally known as cactus calcite. The calcite crystals are scalenohedral form, with hexagonal f...

From Nagar, Hunza Valley, Gilgit District, Gilgit-Baltistan, PakistanLarge lustrous terminated transparent aquamarine crystal, the blue gem variety...

From San Eugenio, Artigas Dept., Uruguay Large 5'' scalenohedral crystal of calcite with pyrite on amethyst matrix accented by isolated cluster of ...

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

From Rubaya, Masisi, North Kivu, Democratic Republic of the Congo Lustrous transparent bi-colored elbaite tourmaline crystal with no matrix attache...

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

From Huanggang Mine, Keshiketeng Qi, 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 Slender plate of lustrous yellow metallic chalcopyrite microcrystals on matrix....

From Dulong Mine, Maguan, Yunnan, China Large plate of bright blue hemimorphite with botryoidal hemimorphite crystals coating brown matrix. The hem...

An exquisite, pristine formation of Ram’s Horns calcite, hard to find and very rare. It is a complete floater in perfect condition.    Weight: 1.4 ...

From Sweetwater Mine, Reynolds Co., Missouri USALarge, classic thumbnail specimen of cubic galena crystal with overgrowth of octahedral galena crys...

From Ozark-Mahoning No. 1 Mine, Cave-in-Rock District, Hardin County, Illinois Lustrous crystal cluster of yellow fluorite. The fluorite crystals a...

From Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan Prismatic blue afghanite crystals exposed on the face o...

Lustrous transparent yellow-brown barite crystals completely covering one side of a double-sided plate of matrix. Yellow-metallic pyrite or chalcop...

From Nasik District, Maharashtra, India Large lustrous cluster of an acicular sprays of scolectite crystals on pink stilbite. The scolecite crystal...

Here is stunning blue botyroidal formation of powder blue translucent hemimorphite on matrix. The hemimorphite has a scintillating surface composed...

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

From Huanggang Mine, No. 6 Shaft, Keshiketeng Qi, Chifeng, Inner Mongolia, China Transparent dark-blue fluorite crystals covering front of gray qua...

From Mogok, Sagaing Division, Myanmar (Burma) An excellent complex large crystal of lavender calcite crystal with a glassy luster. Large octahedron...

From near Pantai Manakarra, Mamuju, Sulawesi, Indonesia Double-sided cluster of translucent grape purple quartz agate in spherical formations with ...

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