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This quartz specimen from Brazil features a large, terminated crystal which is covered on all sides ..
Here is a fine quality specimen of blue fluorite, from the Blanchard Mines in Bingham, NM. The piece..
Bolivian sulfur specimens like this one come in a bright yellow color that is really attention-getti..
This intriguing fluorite specimen features complex, blue-violet, transparent to translucent crystals..
This polished display specimen from the world famous Ladjuar Medam deposit in Sar-e-Sang is a rich, ..
Fluorite has natural cleavage planes that are at right angles to each other, so it can be formed int..
Here is a beautiful specimen of specular hematite, which is a variety of hematite characterized by a..
Here is a colorful specimen of blue fluorite with dark blue phantom edges, from the renowned Blancha..
From an old Sicilian collection, this is a superb specimen consisting of multiple rhombohedral cryst..
Here is an amazing specimen featuring 4 highly geometrical, interlocking twinned pyrite cubes. Amazi..
This colorful specimen features baby pink, gemmy, terminated, high quality rose quartz crystals. The..
Specimens of fulgurite are always fascinating, because they are caused by a lightning strike in sand..
The gum drop green color of this fluorite octahedron is exceptionally rich, and the smooth surfaces ..
This is a striking specimen of pink halite, more commonly called salt! This lovely piece came ..
Labradorite is best known for the iridescent neon colors it gives off when viewed from the right ang..
Here is a rare chrysoberyl specimen, featuring a vibrant yellow-green crystal in a nearly black tara..
This rhombohedral crystal cleavage of Iceland spar is an unusually colorful yellow and is a highly a..
This is a specimen of clear quartz, which has been shaped and polished into a lovely sculptural form..
The fluorite crystals on this outstanding specimen of electric green fluorite are super sharp octahe..
Here is an excellent, sharp cluster of adularia in classical crystal form with richly colored inclus..
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