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Black Opal and Hanksite Physical Properties


Hanksite and Black Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Readily soluble in water   

Durability
Not Available   
Not Available   

Specific Gravity
1.97-2.22   
2.562   

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

Cleavage
Not Available   
Good on {0001}   

Mohs Hardness
6-6.5   
3-3.5   

Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.   
KNa22(SO4)9(CO3)2Cl   

Optical Properties >>
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Black Opal and Hanksite Chemical Formula

While comparing Black Opal and Hanksite 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 Hanksite chemical formula.

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Black Opal and Hanksite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Hanksite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Hanksite Optical Properties during the identification of gemstone. Specific gravity of Black Opal is 2.562 whereas that of Hanksite is 2.562.

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