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The weloganite crystals on this specimen from the type locality in Quebec are grayish-yellow in colo..
Crystals of staurolite sometimes form as twins in a unique 90 degree cross formation that is called ..
Here is a lovely turquoise blue twinned crystal of aquamarine with large gemmy areas near the tops. ..
Here is an outstanding specimen of black schorl tourmaline with microcline feldspar from Namibia.&nb..
Here is a colorful, green-brown apatite crystal embedded in orange calcite. The crystal is sharp and..
Here is a remarkable old-timer that features gemmy, very pale lavender (nearly clear) cubes of the h..
Here is a specimen of gyrolite over prehnite, from India. The gyrolite has grown in radial spherical..
Lavender to pale purple, lustrous, transparent cubic crystals of fluorite to 5 mm on edge nearly cov..
This specimen of lab-grown bismuth features large crystals in brilliant, heavily saturated colors-vi..
Here is a copper nugget from Michigan in a bright-as-a-new-penny red-orange copper color. The piece ..
Carnelian is typically only available as beads and cabachons, so when I found this large, polished n..
Here is an excellent specimen of anthophyllite, featuring long blue-gray fibers that are locked soli..
This group of twinned, glossy crystals of aqua aura quartz is nearly transparent, with brilliant lus..
The metallic silvery gray color (with just a hint of red) of this cluster of cuprite crystals is ver..
Here is a brilliant, neon red-orange crystal of crocoite from the world famous 2010 Pocket at the Ad..
I love the eye-catching color intensity of the selenite crystals on this specimen from the Lubin Min..
Datolite from recent finds at Charcas has remarkable crystallography, and this is a great example, f..
Here is a highly aesthetic, double-terminated, transparent calcite crystal in a vivid orange color f..
Spessartine garnet is a neosilicate, a manganese-aluminum garnet in a solid solution series with alm..
The color of this chabazite is an out-of-the-ordinary pinkish orange, and the crystals are up to 1" ..
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