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Grossular Garnet and Black Opal Physical Properties


Black Opal and Grossular Garnet Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.6   
1.97-2.22   

Fracture
Not Available   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
None   
Not Available   

Mohs Hardness
6.5-7.5   
6-6.5   

Chemical Composition
Ca3Al2Si3O12   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Grossular Garnet and Black Opal Chemical Formula

While comparing Grossular Garnet 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 Grossular Garnet and Black Opal chemical formula.

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Grossular Garnet and Black Opal Specific Gravity

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

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