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Violane and Precious Opal Physical Properties


Precious Opal and Violane Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.22-3.40   
1.98-2.25   

Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references   

Cleavage
Not Available   
Not Available   

Mohs Hardness
5-6   
5-6.5   

Chemical Composition
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)   
SiO 2 · nH 2OGemdat.org , Management Team (2012)   

Optical Properties >>
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Violane and Precious Opal Chemical Formula

While comparing Violane and Precious 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 Violane and Precious Opal chemical formula.

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Violane and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Violane and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Violane and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Violane is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.

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