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Onyx
Onyx

Gahnospinel
Gahnospinel



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Onyx
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Gahnospinel

Onyx and Gahnospinel Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.55-2.703.65-4.55
Amber
1 7.18
1.5 Fracture
Not Available
ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Indiscernible
None, but may exhibit slight parting
1.7 Mohs Hardness
6.5-77.5-8
Amber
2 10
1.8 Chemical Composition
SiO2
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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.

  • Chemical formula of Onyx- SiO2
  • Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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.