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Biotite
Biotite

Zincite
Zincite



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Biotite
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Zincite

Biotite and Zincite 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
-
-
5.50-5.90
Conchoidal
On {10 1 0}, perfect; parting on {000 1 }
4
(Zn,Mn2+ )OMichael O’Donoghue , Gems, Sixth Edition (2006)

Biotite and Zincite Chemical Formula

While comparing Biotite and Zincite 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 Zincite chemical formula.

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Biotite and Zincite Specific Gravity

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