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Onyx and Gahnospinel Physical Properties


Gahnospinel and Onyx Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.55-2.70   
3.65-4.55   

Fracture
Not Available   
ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Indiscernible   
None, but may exhibit slight parting   

Mohs Hardness
6.5-7   
7.5-8   

Chemical Composition
SiO2   
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)   

Optical Properties >>
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Onyx and Gahnospinel Chemical Formula

While comparing Onyx and Gahnospinel 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 Onyx and Gahnospinel chemical formula.

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Onyx and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.

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