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The royal azure color of the linarite on this specimen is very eye catching, and the blue really "po..
Here is a large single crystal of shimmering opal aura quartz. The crystal is sharply terminated and..
Here is a superb specimen of magnetite. It comes from the TK mine, Yinnietharra, Western Australia, ..
Here is a long, single, pristine, terminated quartz crystal from Tibet, and it is a beauty. It..
Here is a classic, beautifully formed, super glassy, lustrous, 27.4 carat single crystal of imperial..
This is a superb, cabinet-sized specimen of cobaltoan calcite with a rich raspberry magenta color th..
Here is a colorful specimen of natural turquoise blue amazonite from Colorado. The nicely terminated..
This cluster of aqua aura quartz crystals is sharp and clear, with brilliant luster and excellent qu..
Here Is a beautiful specimen of pyrite (also known as fool's gold). The pyrite crystals are pyritohe..
This is a very colorful specimen of sharply formed red raspberry garnet crystals from Sierra de Cruc..
Here is a colorful specimen of blue kyanite crystals with a bit of milky quartz mixed in among..
The large crystal on this lazurite (lapis lazuli) specimen is colored a deep azure-blue color, and i..
Here is an outstanding specimen of ferruginous red quartz from the 2015 find in Morocco, reportedly ..
Here is a nice specimen of smithsonite in a deep purple color with a hint of pink, formed in smooth,..
On this sulfur specimen from Bolivia the white matrix is covered with sparkling gemmy sufur crystals..
Petalite is a rare lithium mineral, that forms in clear gemmy crystals in some pegmatites. This crys..
The large Herkimer diamond in this breathtaking specimen is a water clear gem quartz crystal that is..
This is a large, single, terminated crystal of crocoite from the world famous Adelaide Mine in Tasma..
The crystals on this calcite specimen are up to 1" long, and are formed as steep-flanked dogtooth cr..
The color of these devilline crystals is a vivid turquoise blue, which is enhanced by a sparkling ov..
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