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Adularia
Adularia

Biotite
Biotite



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Adularia
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Biotite

Adularia and Biotite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.54-2.61
-
Perfect
6
KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Adularia and Biotite Chemical Formula

While comparing Adularia 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 Adularia and Biotite chemical formula.

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Adularia and Biotite Specific Gravity

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