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Wood Opal
Wood Opal

Biotite
Biotite



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Wood Opal
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Biotite

Wood Opal and Biotite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
-
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Wood Opal and Biotite Chemical Formula

While comparing Wood Opal 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 Wood Opal and Biotite chemical formula.

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Wood Opal and Biotite Specific Gravity

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