Lustrous translucent red-brown sphalerite crystals in an elongated cluster perched on a thin slab of gray matrix coated with quartz microcrystals. ...

From San Pedro Mine, San Pedro Corralitos, Chihuahua, Mexico Well defined undamaged specimen of olive yellow-green ball aggregates of mimetite crys...

This unique Madagascan Blue Celestite Cluster exhibits large, gem crystals of remarkable quality, featuring prism faces and sharp chisel-terminatio...

From Momin Akhada, near Rahuri, 50 km north of Ahmednagar, Maharashtra, India Radiating clusters of transparent green Fluorapophyllite crystals on...

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

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

From Shaba Copper Belt, Katanga (Shaba) Province, Democratic Republic of the Congo (Zaire) A sculptural botryoidal formation of solid velvety green...

Large cluster of lustrous cubic fluorite crystals with surfaces composed of many smaller parallel cubic faces. The fluorite crystals have medium-pu...

From Ganzhou, Jinagxi, China Superb water-clear wedge-shaped barite crystals covering one face of tan-colored matrix. The barite crystals formed ov...

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

Half of a hollow geode lined on the inner surfaces with lustrous purple amethyst quartz crystals. All of the amethyst crystals are clean and lustro...

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

From Kamoya Mines, Lualaba Province, Democratic Republic of the Congo Several bright metallic crystals of rare carrollite running through white cal...

This 20 lbs. top quality Large Septarian Druzy Geode Egg from Madagascar features an exposed area lined with dazzling druzy quartz crystals, as wel...

Red Quartz Hematite crystal cluster from Izizauen Alnif, Tarhbalt, Morocco. Cylindrical stalactite of calcite crystals mixed with red hematite.  He...

From Shigar Valley, Skardu, Baltistan, Gilgit-Baltistan, Pakistan Large single crystal of transparent sherry colored Topaz with sharp complex basal...

From Shigar Valley, Skardu, Baltistan, Gilgit-Baltistan, Pakistan Large single crystal of transparent sherry colored Topaz with sharp complex basal...

From Bombay Quarry, Mumbai (Bombay), Maharastra, India Hemispherical cluster of hair-thin okenite crystals in a geode lined with calcite along side...

Here is a large vertebrae from the massive Spinosaurus maroccanus theropod dinosaur. It comes from From Baharija Formation, South of Taouz, Kem-kem...

AAA-quality Polychrome Jasper Freeform. This beautiful specimen has multi-colored veins of Chalcedony from Madagascar. Beautiful multi-colored rock...

This AAA quality Septarian druzy point features an exposed area lined with shimmering quartz crystals, and boasts a hand-polished, highly reflectiv...

Large, natural Lodolite quartz crystal cluster known as garden quartz, landscape quartz, or scenic quartz, this crystal contains natural earth elem...

This exquisite large polished Ocean Jasper heart from Madagascar consists of a distinct pattern of "orbs" on a striking striped background. It prod...