From Nandan County, Hechi, Guangxi, China Lustrous grayish-yellow pseudo-rhombohedral barite crystals in parallel orientation. The barites are tran...

From Alimon Mine, Huaron, Cerro de Pasco, Peru Large formation of metallic chalcopyrite crystals overgrown on lustrous jet black sphalerite accente...

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

A fine and gorgeous Malachite Stalactite slice from Congo with rich, velvety bands of light and dark green and a magical chatoyance that morphs and...

From Elk Creek, Meade County, South Dakota. Cluster of translucent yellow-brown barite on botryoidal crystals.  Weight: 1.9 lbs, Dimensions: 4 x 2 ...

From Nasik District, Maharashtra, India Large lustrous cluster of intersecting acicular sprays of scolectite crystals with matrix. The scolecite cr...

From Alimon Mine, Huaron, Cerro de Pasco, Peru Large formation of metallic chalcopyrite crystals overgrown on lustrous jet black sphalerite accente...

From Nasik District, Maharashtra, India Lustrous cluster of intersecting acicular sprays of scolectite crystals with Stilbite matrix. The scolecite...

From Nasik District, Maharashtra, India One milky calcite crystal on powder blue druzy chalcedony matrix.   Weight: 393 grams , Dimensions: 4.5 x 1...

A fine and gorgeous Malachite Stalactite slice from Congo with rich, velvety bands of light and dark green and a magical chatoyance that morphs and...

From Nandan County, Hechi, Guangxi, China Long cluster of large, blocky crystals of yellow-tan barite crystals. The barites are translucent and sho...

From Moscona Mine, Villabona District, Asturias, SpainAesthetic penetrating cubic formation of transparent to translucent golden yellow fluorite cr...

Lustrous sparkling cluster of dolomite crystals from Morocco. Dolomite is part of the carbonate class of minerals and is know as a calcium magnesiu...

Large pristine specimen of several hemispherical cluster crystals radiating colorless scolecite clusters in a parallel formation. The scolecite cry...

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

Epidote from Tormiq area, northwest of Skardu, Haramosh Mountains, Baltistan, Gilgit-Baltistan, Pakistan Single crystal of greenish brown epidote w...

From Piedra Parada, Las Vigas de Ramirez, Veracruz, Mexico. Lustrous cluster of amethyst crystals with great transparency and rich purple color wit...

A fine and gorgeous Malachite Stalactite slice from Congo with rich, velvety bands of light and dark green and a magical chatoyance that morphs and...

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

From Cerro de Mercado, Durango, Mexico Gem transparent yellow fluorapatite crystals embedded on both sides of its gray quartz chalcedony. The fluor...