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This large single crystal of amethyst from the Anahi Mine in Bolivia features a rich, deep, dark roy..
On this fine specimen of plancheite, the matrix on the display face is is completely covered with ra..
Here is a large, flashy, clear quartz crystal from Mt. Ida, Arkansas. This big crystal is clear with..
This specimen of blue barite from Morocco is a highly aesthetic example of the material that used to..
The color on this specimen of smithsonite is a pale lilac purple, and the bubbly botryoidal form is ..
This specimen of bright red-orange crocoite features sharp crystals with the typical square cross-se..
This cleaved rhombohedral Iceland spar crystal is an exceptionally clear and highly aesthetic specim..
This is a great specimen of tincalconite, a dehydration pseudomorph after borax that forms after los..
Here is a brilliant, neon red-orange crystal of crocoite from the world famous Red River Pocket at t..
Here is a specimen of this hydrated borate mineral featuring transparent, colorless sprays of radiat..
Here is a fine specimen of calcite from China, with tall stacks of sharp wedge-shaped crystal prisms..
Here is a rare specimen of rounded spherical aggregates of whitish botryoidal dundasite, a lead carb..
Here is a beautifully formed specimen of barite that is highly representative of the material found ..
Here is a floater cluster of orthoclase (microcline) with hornblende that I collected from a calcite..
This is a flashy, showy specimen featuring the classic combination of deep blue azurite and rich gre..
Here is a colorful, cabinet-size specimen of blue-green fluorite from the famous Rogerley Mine in En..
This fine specimen of citrine quartz is 100% natural and has not been treated in any way - just clea..
Here is a cluster of aqua aura quartz crystals that are transparent, with brilliant luster, exceptio..
The gemmy blue-green color on this specimen of datolite from Dal'negorsk is as rich and vibrant as i..
On this specimen of ball fluorite, the round, shiny ball is 1.5" in diameter, and it sits on a 2.7: ..
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