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Topaz Hardness Mineral

Topaz Hardness Mineral

What is Topaz? Topaz is a rare silicate mineral with a chemical composition of Al 2 SiO 4 (F,OH) 2.It is best known for three things: 1) being one of the world's favorite colored gemstones; 2) being "mineral number 8" in the Mohs Scale of Hardness; and, 3) being a birthstone for the month of November.. Topaz obtains much of its popularity from its beautiful colors and its status as a birthstone.Topaz - Wikipedia,Topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO4(F, OH)2. Topaz crystallizes in the orthorhombic system, and its crystals are mostly prismatic terminated by pyramidal and other faces. It is one of the hardest naturally occurring minerals (Mohs hardness of 8) and is the hardest of any silicate mineral. This hardness combined with its usual transparency and variety of colors means that it has acquired wide use in jewellery as a cut gemstone as well as for intagliosand other gemstone carvi…Topaz: The mineral topaz information

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