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Povondraite and Crystal Opal Physical Properties


Crystal Opal and Povondraite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.26   
1.97-2.22   

Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
None   
Not Available   

Mohs Hardness
Not Available   
5.5-6.5   

Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Povondraite and Crystal Opal Chemical Formula

While comparing Povondraite and Crystal 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 Povondraite and Crystal Opal chemical formula.

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Povondraite and Crystal Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Povondraite and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Povondraite and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Povondraite is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.

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