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is a colorful mineral composed of calcium fluoride (CaF
often in shades of purple
This fluorescence is caused by trace amounts of uranyl ions incorporated into the silica structure during its formation
and prosperity
Smoky quartz is a variety of quartz that gets its characteristic smoky brown to black color from natural irradiation and the presence of aluminum impurities
Malachite Egg #9 Electric Wonderland is a colorful mineral composed
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