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Zircon and Black Opal Physical Properties


Black Opal and Zircon Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
insoluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.93-4.73   
1.97-2.22   

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

Cleavage
{110} and {111}   
Not Available   

Mohs Hardness
7.5   
6-6.5   

Chemical Composition
ZrSiO4   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Zircon and Black Opal Chemical Formula

While comparing Zircon 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 Zircon and Black Opal chemical formula.

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Zircon and Black Opal Specific Gravity

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

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