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Anorthite and Precious Opal Physical Properties


Precious Opal and Anorthite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.77   
1.98-2.25   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references   

Cleavage
Perfect [001] good [010] poor [110]   
Not Available   

Mohs Hardness
6-6.5   
5-6.5   

Chemical Composition
CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)   
SiO 2 · nH 2OGemdat.org , Management Team (2012)   

Optical Properties >>
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Anorthite and Precious Opal Chemical Formula

While comparing Anorthite 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 Anorthite and Precious Opal chemical formula.

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Anorthite and Precious Opal Specific Gravity

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

Red Gemstones

Red Gemstones


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