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Topaz

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by

Lisa Weiss

on 7 May 2017

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Transcript of Topaz

Uses
Gemstone
Jewelry
Not used much elsewhere because of rarity
Topaz mining
Mined in
USA
Pakistan
China
Pictures
Topaz
Topaz definition
Variety of colors
Green, blue, red, purple, clear
Streak is white
Has a vitreous luster
A hardness of 8
Perfect cleavage
Density of 3.6- 3.4
Locations
Igneous rocks
Commonly near hydrothermal vents
Rarely found in metamorphic rocks
Mineral composition and structure
Silicate mineral
Composed of aluminum and fluorine
Crystallizes in the orthorhombic system
Bibliography
Mindat.org , April 2 2014, http://www.mindat.org/min-3996.html
Geology.com, April 6 2014, http://geology.com/minerals/topaz.shtml
Topaz mineral data, April 2 2014, http://webmineral.com/data/Topaz.shtml#.U0qQXfldWT8
Picture bib
http://geology.com/minerals/topaz.shtml
http://www.gemselect.com/gem-info/azotic-topaz/azotic-topaz-info.php
https://www.palagems.com/blue_topaz_weldon.htm
http://www.gemstones-guide.com/Topaz.html
Full transcript