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Here are 9 lovely specimens of cubic fluorite from the Hilton Mine in Cumbria, England. The fluorite..
Here are 10 crystals of a variety of reddish-pink rose quartz that is often called "pink ice" and al..
Talc is a 1 on the Mohs hardness scale, making it the world's softest mineral, and it can be scratch..
This is a lovely esample of boulder opal, a beautiful specimen from probably the world's best known ..
Here is a lustrous, large-for-the-species crystal of jeremejevite from Namibia. Jeremejevite is a ra..
This specimen of drip copper is highly aesthetic and visually amazing. The color is a brilliant oran..
Here is an amazing specimen of what is called bird's nest chalcedony, because of its resemblance to ..
This Indian garnet is bright and flashy, and is colored a deep blood red color that is very robust. ..
Here is an amazing specimen of lechatelierite, the scientific name for fulgurite. It is a partially ..
This is a collection of 75 sharp fluorite octahedrons from Illinois. To make these, fluorite crystal..
This is a fine specimen of coprolite from Madagascar. It has great detail and recognizable form, and..
Splash copper is created using native copper from Michigan. The first step in the process is to melt..
Here is a fine pocket lined with sharp datolite crystals from the Roncari Quarry in East Granby, CT...
On this gorgeous specimen, vivid burgundy red crystals sit on a yellow-orange matrix, creating a spe..
Here is a sharp single pyrite crystal that is 3.4" from tip-to-tip at the outside corners, and 2" al..
Long, pristine, doubly terminated Tibetan quartz crystals like those on this specimen are very colle..
Here is a very 3-dimenswional, scultural specimen of green quartz (called prase) from the old classi..
The gleaming colors on this specimen of chalcopyrite are intensely iridescent, featuring multiple sh..
Fine nuggets of pure native copper are occasionally found in Michigan's copper mines in the Upper Pe..
Here is a gemmy Russian fluorapatite, with great luster and superb color. It is a rich neon tu..
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