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Topaz-Gemstones

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Group: //
Hardness: 8
Specific Gravity: 3,52-3,56
Crystal System: orthorhombic
Index of Refraction: 1,610-1,638
Transparency: transparent


Topaz is composed of aluminum, silicate, and fluoride.
Topaz can be colorless, blue, brownish yellow, orange (Imperial Topaz), and pink.
Mining sites are located in Brazil, Sri Lanka, the Urals, Madagascar, and Africa.

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