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Common Opal and Vlasovite Physical Properties


Vlasovite and Common Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Nearly insoluble in HCl and HNO3   

Durability
Not Available   
Not Available   

Specific Gravity
1.98-2.50   
2.97   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)   
Conchoidal, Brittle   

Cleavage
Not Available   
Distinct on {010}   

Mohs Hardness
5.5-6.5   
6   

Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   
Not Available   

Optical Properties >>
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Common Opal and Vlasovite Chemical Formula

While comparing Common Opal and Vlasovite 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 Common Opal and Vlasovite chemical formula.

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Common Opal and Vlasovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Common Opal and Vlasovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Vlasovite Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 2.97 whereas that of Vlasovite is 2.97.

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