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Biotite
Biotite

Vlasovite
Vlasovite



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Biotite
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Vlasovite

Biotite and Vlasovite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2
 
Brittle
Nearly insoluble in HCl and HNO3
-
2.97
Conchoidal
Distinct on {010}
6
-

Biotite and Vlasovite Chemical Formula

While comparing Biotite and Vlasovite 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 Biotite and Vlasovite chemical formula.

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Biotite and Vlasovite Specific Gravity

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