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Sunlight shows an orangeish-pink
putting intentional scratches into the surface to help retain diamond and increase surface complexity
but it really never caught on and is rarely grown today
allowing it to be used in laser rods and giving it a pure green color
dispersion of 0
Zincite Specimens, Manmade Smokestack Crystals from Poland halloween Sunlight shows an orangeish-pinkThese are specimens of zincite, or zinc oxide, which grew in a refinery smokestack in Poland. Apparently this material was accidentally produced in an old Soviet era refinery which had very dirty, zinc rich exhaust as the gases cooled the zinc oxide crystallized out, slowly building up transparent gemmy crystals in a variety of colors and forms. Some are even fluorescent, in part or in whole. Specimens like this are called 'anthropogenic' not
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