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These 7 carrollite specimens feature sharp crystals set in white calcite, with a brilliant metallic ..
Here is a flat of 10 bright, juicy orange colored spessartine garnets, fine examples from the find i..
Here is a wholesale lot of 14 gemmy specimens to 1.7" of the lithium mineral petalite. The specimens..
Bismuth crystallizes in amazing hoppered shapes when it grows on a cooling melt. The edges of ..
Here are 12 beautifully formed crystal of imperial topaz, all very gemmy and sharply terminated.&nbs..
Here are 10 genuine, natural, uncut diamond crystals from the Congo, shaped as modified cubes, octah..
When staurolite forms twins at a 90 degree angle in a cross formation, they are called "fairy crosse..
Here is an intriguing specimen of lechatelierite, the scientific name for fulgurite-the name for gla..
The crystals in this sharp cluster of fluorite are brightly lustrous, and areclear inside with phant..
Here is a specimen that is colored a lovely, vibrant turquoise-blue. It is a sharp, complete crystal..
Sometimes pure native copper is found as nuggets in the copper mines in upper Michigan, and this is ..
This specimen is a group of 3 amazingly bright, extraordinarily sharp, interlocking pyrite cubes tha..
This is a naturally magnetic specimen of magnetite, also known as lodestone because of its magnetism..
This imperial topaz crystal has an unusually rich golden orange color, with scintillating fire insid..
The crystals on this specimen of blue fluorite are a deeply saturated indigo blue, as richly colored..
There are loads of sharp, well-formed gemmy prismatic crystals to 10mm perched atop the light colore..
These snow-white growths of starburst aragonite look like exotic flowers, as they grow upward and ou..
Here is a rare crystal of shiny metallic molybdenite, in a great large size. The flashy surfaces of ..
This is a specimen of the silicate mineral actinolite from Rowe, Massachusetts. Its earthy gray-gree..
Here is a great specimen, a 2.6 ounce piece of the Sikhote Alin meteorite with the characteristic or..
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