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Proustite and Gahnite Physical Properties


Gahnite and Proustite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
5.51-5.64   
4.00-4.62   

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

Cleavage
Distinct on {10 1 1}   
Indistinct parting on [111]   

Mohs Hardness
2.5   
7.5-8   

Chemical Composition
Ag 3AsS 3Michael 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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Proustite and Gahnite Chemical Formula

While comparing Proustite 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 Proustite and Gahnite chemical formula.

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Proustite and Gahnite Specific Gravity

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

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Black Gemstones


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