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Benitoite and Common Opal Physical Properties


Common Opal and Benitoite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Insoluble: HCl   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.61-3.68   
1.98-2.50   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Conchoidal, Conchoidal, Gemstones of the world (2001)   

Cleavage
[10 1 1] poor   
Not Available   

Mohs Hardness
6-6.5   
5.5-6.5   

Chemical Composition
BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   

Optical Properties >>
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Benitoite and Common Opal Chemical Formula

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

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Benitoite and Common Opal Specific Gravity

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

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