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Hauyne and Black Opal Physical Properties


Black Opal and Hauyne Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Gelatinises in acids   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.4-2.5   
1.97-2.22   

Fracture
Uneven, Conchoidal, Brittle   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Distinct on {110}   
Not Available   

Mohs Hardness
5-6   
6-6.5   

Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Hauyne and Black Opal Chemical Formula

While comparing Hauyne and Black 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 Hauyne and Black Opal chemical formula.

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Hauyne and Black Opal Specific Gravity

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

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