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Chalcedony
Chalcedony

Biotite
Biotite



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Chalcedony
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Biotite

Chalcedony and Biotite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
Soluble
-
2.55-2.70
Uneven, Splintery, Conchoidal
Absent
6.5-7
SiO2
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Chalcedony and Biotite Chemical Formula

While comparing Chalcedony 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 Chalcedony and Biotite chemical formula.

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Chalcedony and Biotite Specific Gravity

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