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White topaz
White topaz

Gahnite
Gahnite



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White topaz
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Gahnite

White topaz and Gahnite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Indiscernible
-9999
Al2SiO4(F,OH)2
 
-
-
-
4.00-4.62
Conchoidal, Uneven
Indistinct parting on [111]
7.5-8
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

White topaz and Gahnite Chemical Formula

While comparing White topaz and Gahnite 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 White topaz and Gahnite chemical formula.

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White topaz and Gahnite Specific Gravity

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