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Poudretteite and Precious Opal Physical Properties


Precious Opal and Poudretteite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.51-2.53   
1.98-2.25   

Fracture
Conchoidal, Splintery   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references   

Cleavage
None   
Not Available   

Mohs Hardness
5   
5-6.5   

Chemical Composition
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)   
SiO 2 · nH 2OGemdat.org , Management Team (2012)   

Optical Properties >>
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Poudretteite and Precious Opal Chemical Formula

While comparing Poudretteite 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 Poudretteite and Precious Opal chemical formula.

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Poudretteite and Precious Opal Specific Gravity

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

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