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Selenite
Selenite

Biotite
Biotite



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Selenite
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Biotite

Selenite and Biotite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Perfect
2
CaSO4·2H2O
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Selenite and Biotite Chemical Formula

While comparing Selenite 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 Selenite and Biotite chemical formula.

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Selenite and Biotite Specific Gravity

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