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Variscite
Variscite

Biotite
Biotite



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Variscite
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Biotite

Variscite and Biotite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.42-2.58
Conchoidal, Splintery, ConchoidalWalter Schumann
[010] perfect
4-5
AlPO4 · 2(H2O)
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Variscite and Biotite Chemical Formula

While comparing Variscite and Biotite 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 Variscite and Biotite chemical formula.

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Variscite and Biotite Specific Gravity

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