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Biotite and Carnelian Physical Properties


Carnelian 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   
2.58-2.64   

Fracture
Uneven, Even, Yellow, White   
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)   

Cleavage
Perfect on the {001}   
Absent   

Mohs Hardness
2.5-3.0   
6.5-7   

Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2   
SiO2   

Optical Properties >>
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Biotite and Carnelian Chemical Formula

While comparing Biotite and Carnelian 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 Carnelian chemical formula.

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Biotite and Carnelian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Biotite is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.

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Yellow Gemstones


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