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Here is an amazing specimen of aragonite from Chihuahua, Mexico. It is a large shrub-like branching ..
This is an excellent specimen of a fossil ulmaceae leaf, Cedrelospermum nervosum, from Utah's Green ..
Here's a great twinned black tourmaline (schorl) specimen from Namibia with an interesting variation..
This copper nugget from Michigan has been polished on both sides to bring out its rich copper color,..
Here is a sharp single pyrite crystal that is 2.1" from tip-to-tip, and 1.3" along the longest edge...
The color red in the mineral world is one of the most desirable colors for collectors. And this spec..
Here is a large, very impressive dinosaur footprint, beautifully preserved in a brownish-gray siltst..
This specimen features fuzzy cushions of picropharmacolite on matrix. Picropharmacolite is a rare Ca..
This long, thin, well-formed stibnite crystal is a metallic silver color that really catches the eye..
This is a nicely pyritized Pleuroceras ammonite fossil: both the positive and the negative impressio..
Galena from Dal'negorsk forms in fascinating variations on the usual cubic and octahedral crystals, ..
Measuring 3.9" from corner to corner, this is a very pink, rainbow-filled specimen of Iceland spar, ..
Here is an intriguing specimen- a shiny copper nugget, with a bright orange-red copper color a..
This cubic crystal of pyrite is amazing: it is 2" from tip-to-tip and 1.3" along the longest edge, v..
The fan-like shape of this black kyanite specimen is typical of the material found in Minas Gerais. ..
Ball fluorite is rare, and this is a superb example of this highly collectible material, featuring a..
This specimen is a dark gray schist that is loaded with gemmy sillimanite crystals to nearly .7". Th..
This brightly colorful specimen of turquoise blue aragonite comes from China's Yunnan Province. The ..
The surfaces of this almandine garnet from India have been polished to a high luster, showing off th..
This is a very clear, 31 carat section of a phenakite crystal form Russia, with great gemmy clarity...
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