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Biotite
Biotite

Marialite
Marialite



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Biotite
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Marialite

Biotite and Marialite 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
-
-
2.50
Uneven, Conchoidal
Distinct on {100} and {110}
5.5-6
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Biotite and Marialite Chemical Formula

While comparing Biotite and Marialite 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 Marialite chemical formula.

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Biotite and Marialite Specific Gravity

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