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Biotite and Glass Physical Properties


Glass and Biotite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.7-3.3   
2.39-4.00   

Fracture
Uneven, Even, Yellow, White   
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)   

Cleavage
Perfect on the {001}   
Not Available   

Mohs Hardness
2.5-3.0   
4-6   

Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2   
Not Available   

Optical Properties >>
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Biotite and Glass Chemical Formula

While comparing Biotite and Glass 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 Glass chemical formula.

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Biotite and Glass Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Glass Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Glass Optical Properties during the identification of gemstone. Specific gravity of Biotite is 2.39-4.00 whereas that of Glass is 2.39-4.00.

Yellow Gemstones

Yellow Gemstones


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