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Biotite
Biotite

Ajoite
Ajoite



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Biotite
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Ajoite

Biotite and Ajoite 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
 
-
Decomposed by acids
-
2.96
-
Perfect on {010}
5
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Biotite and Ajoite Chemical Formula

While comparing Biotite and Ajoite 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 Ajoite chemical formula.

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Biotite and Ajoite Specific Gravity

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