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Biotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks
red to violet
or color-enhanced
often with a mottled appearance
Kunzite 10mm Coin AAA Grade Cabochon Olive Jade Biotite is a name usedKunzite was named after a former Tiffany & Co. vice president, famed mineralogist and jeweler George Frederick Kunz, who first catalogued the stone in 1902. It is a variety of the silicate Spodumene, and forms naturally as a glassy, transparent stone. It can be colorless, pink, lilac, yellow or green, with darker shades being higher in value. Kunzite is prone to fading in direct sunlight. Sold individually. These cabochons are all unique and vary in
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