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Gahnite and Sheen Obsidian Physical Properties


Sheen Obsidian and Gahnite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.00-4.62   
2.33-2.50   

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

Cleavage
Indistinct parting on [111]   
Not Available   

Mohs Hardness
7.5-8   
5-5.5   

Chemical Composition
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
Not Available   

Optical Properties >>
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Gahnite and Sheen Obsidian Chemical Formula

While comparing Gahnite and Sheen Obsidian 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 Gahnite and Sheen Obsidian chemical formula.

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Gahnite and Sheen Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Sheen Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Sheen Obsidian Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.33-2.50 whereas that of Sheen Obsidian is 2.33-2.50.

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