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Fluorite is one of the most variable of all crystalline minerals
highly variable Chalcedony spheres or roses are almost geode-like in appearance and one can clearly see the process of geode or agate formation in progress in each specimen
fluorite specimens have been prized since ancient times and are now among the most popular minerals in the collecting world
petrified wood is not wood at all but rather the fossilized remnants of trees from millions of years ago
Natural copper is relatively soft and often found in intricate and unique structures
Fluorite Chalcedony Fluorite is one of theFluorite is one of the most variable of all crystalline minerals, occurring in shades of blue, green, purple, red and many other colors corresponding to their physical makeup and conditions when the mineral was formed. The name fluorite comes from its use as a flux, or chemical cleaning agent, in iron smelting and other metallurgy. Pure fluorite is clear, but most specimens have vivid color due to various impurities and are often fluorescent. With a
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