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This is a fine specimen of coprolite from Madagascar. It has great detail and recognizable, slightly..
This specimen of fluorite comes from the Denton Mine in Southern Illinois, which has been closed sin..
This fine ruby crystal comes from the famed diggings in the Mysore District in southern India, which..
This is a lovely sample of boulder opal, a beautiful specimen from probably the world's best known o..
Here is a superb single crystal of lemon-yellow apatite. The color is rich, and the crystal has exce..
This fine Herkimer diamond quartz specimen is a gem clear, highly lustrous, razor sharp crystal. The..
This rhodonite specimen is a very colorful example which displays a wonderful assemblage of sharp bl..
Here is a gorgeous cluster of 2 very sharp and near-perfect interlocking, penetrating twin cubic cry..
The malachite crystals on this exquisite specimen are formed into lustrous, chatoyant radiating acic..
Here is a specimen of radiating acicular malachite that came out of the Milpillas Mine in 2008. This..
This is a group of blue-violet fluorite crystals from the famed Denton Mine in southern Illinois. Th..
Milpillas azurite is the finest available from anywhere in the world right now, and since the deposi..
This is a 100% natural, uncut diamond crystal, shaped partially as a dodecahedron, and colored an un..
This is a great fluorite specimen from a classic locality: the world-famous Denton Mine. The Illinoi..
Here is a gemmy 112 carat spessartine garnet collected in 2008 from the now-closed Nani Hill localit..
Here is a parcel of 40 double terminated Herkimer diamond quartz crystals with a total weight of 1.2..
This lab-grown specimen of bismuth grew in a "hoppered" formation. The edges of hoppered crystals ar..
Here is a French barite crystal from Auvergne that was mined by a French collector, who sold it to m..
Here are 40 double terminated Herkimer diamond quartz crystals with a total weight of 1.5 ounces. Th..
The yellow-gold crystals on this specimen from the Glove Mine in Arizona are thin enough that you ca..
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