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The gentle pastel pink color of this sharp gemmy danburite crystal is very attractive, especially as..
Here is a specimen of rhodonite from the classic Betts Manganese Mine locality in western Massachuse..
This is a fine specimen of opaque green emerald from the world's largest known emerald deposit, in B..
This specimen of grossular garnet features mirror-bright crystals in a beautiful chocolatey cinnamon..
Here is a chunk of solid, unaltered purpurite in a really rich royal purple color. Purpurite i..
Mohawkite is a blend of native copper and two other rare minerals: algodoite and domeykite. Th..
This is a large, superb specimen of chrysotile, one of the most important varieties of asbestos, fro..
Sillimanite is an unusual alumino-silicate mineral that is uncommon on the mineral market. This spec..
Here is a sulfur stalactite from the Kawah-Ijen volcano on the island of Java. This volcano is..
Here is a group of sharp, terminated tangerine quartz crystals with a lovely orange color and good t..
This chrysoprase nugget is gem rough quality, and is colored an especially vivid turquoise blue with..
Here is a colorful polished fluorite octahedron from China. The colors really stand out: mainly gras..
Here is a bright, gemmy crystal of yellow-green brazilianite with clean, well defined crystal faces...
This is a beautiful specimen of gemmy smoky quartz on microcline from Moat Mountain in New Hampshire..
Here is a colorful, dark red-orange ferroan kyanite crystal from the 2014 find in Tanzania. This kya..
Here is a cobaltoan calcite specimen in an intensely colorful, screaming cotton-candy pink. Crystals..
This colorful aqua aura quartz crystal is sharp and clear, with brilliant luster and excellent quart..
Here is a large, gemmy, clear, cleaved rhombohedron of Iceland spar (calcite) from Mexico. It ..
The pyritohedral crystals on this Peruvian pyrite specimen are very sharp, with brilliant metallic l..
Here is a fine specimen of Okoruso fluorite featuring sharp, lustrous cubic crystals to 1". The piec..
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