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Biotite and Agate Opal Physical Properties


Agate Opal 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   
1.98-2.50   

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

Cleavage
Perfect on the {001}   
Not Available   

Mohs Hardness
2.5-3.0   
5.5-6.5   

Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2   
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   

Optical Properties >>
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Biotite and Agate Opal Chemical Formula

While comparing Biotite and Agate Opal 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 Agate Opal chemical formula.

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Biotite and Agate Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Agate Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Agate Opal Optical Properties during the identification of gemstone. Specific gravity of Biotite is 1.98-2.50 whereas that of Agate Opal is 1.98-2.50.

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Yellow Gemstones


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