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Serandite
Serandite

Biotite
Biotite



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Serandite
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Biotite

Serandite and Biotite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.52
-
{100} Perfect, {001} Perfect
5-5.5
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael 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

Serandite and Biotite Chemical Formula

While comparing Serandite 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 Serandite and Biotite chemical formula.

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Serandite and Biotite Specific Gravity

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