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Scheelite and Black Opal Physical Properties


Black Opal and Scheelite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
5.9-6.3   
1.97-2.22   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct   
Not Available   

Mohs Hardness
4.5-5   
6-6.5   

Chemical Composition
CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Scheelite and Black Opal Chemical Formula

While comparing Scheelite 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 Scheelite and Black Opal chemical formula.

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Scheelite and Black Opal Specific Gravity

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

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