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Topaz
Topaz

Hurlbutite
Hurlbutite



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Topaz
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Hurlbutite

Topaz and Hurlbutite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.49-3.57
Subconchoidal, Uneven, Conchoidal
[001] Perfect
8
Al2SiO4(F,OH)2
 
-
-
-
2.90
Conchoidal
None
6
CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Topaz and Hurlbutite Chemical Formula

While comparing Topaz and Hurlbutite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Topaz and Hurlbutite chemical formula.

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Topaz and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz Vs Hurlbutite during the identification of gemstone. Specific gravity of Topaz is whereas that of Hurlbutite is .