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Black Opal and Wavellite Physical Properties


Wavellite and Black Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
1.97-2.22   
2.36   

Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous   

Cleavage
Not Available   
[110] perfect, [101] good, [010] distinct   

Mohs Hardness
6-6.5   
3.5-4   

Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.   
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Black Opal and Wavellite Chemical Formula

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

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Black Opal and Wavellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Wavellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Wavellite Optical Properties during the identification of gemstone. Specific gravity of Black Opal is 2.36 whereas that of Wavellite is 2.36.

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