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Biotite
Biotite

Rosasite
Rosasite



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Biotite
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Rosasite

Biotite and Rosasite 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
Effervesces in cold
-
4-4.2
Splintery
Perfect on {100} and {010}
4
CuZn(CO3)(OH)2

Biotite and Rosasite Chemical Formula

While comparing Biotite and Rosasite 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 Rosasite chemical formula.

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Biotite and Rosasite Specific Gravity

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