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Sapphirine and Gahnite Physical Properties


Gahnite and Sapphirine Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.40-3.58   
4.00-4.62   

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

Cleavage
{010} Perfect   
Indistinct parting on [111]   

Mohs Hardness
7.5   
7.5-8   

Chemical Composition
(Al,Mg) 8(Al,Si) 6O 20Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Sapphirine and Gahnite Chemical Formula

While comparing Sapphirine and Gahnite 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 Sapphirine and Gahnite chemical formula.

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Sapphirine and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphirine and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphirine and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Sapphirine is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.

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Green Gemstones


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