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Topaz is a silicate mineral of aluminum and fluorine with the chemical formula Al2SiO4(F,OH)2. Pure topaz is colorless and transparent but is usually tinted by impurities. Topaz is usually transparent, yellow, pale gray, reddish-orange, or blue brown. Topaz can also be made white, pale green, blue, gold, pink (rare), reddish-yellow or opaque to transparent or translucent. Orange topaz is also known as precious topaz and the traditional November birthstone and is the symbol of friendship. Mystic topaz is colorless topaz which has been artificially coated giving it the desired rainbow effect. topaz sale, topaz for sale, topaz overstock, topaz deals, price of topaz, blue topaz, pink topaz, yellow topaz, gold topaz
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