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Tourmaline and Proustite Physical Properties


Proustite and Tourmaline Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.85-3.35   
5.51-5.64   

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

Cleavage
Indistinct   
Distinct on {10 1 1}   

Mohs Hardness
7-7.5   
2.5   

Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.   
Ag 3AsS 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Tourmaline and Proustite Chemical Formula

While comparing Tourmaline and Proustite 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 Tourmaline and Proustite chemical formula.

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Tourmaline and Proustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Proustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Proustite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 5.51-5.64 whereas that of Proustite is 5.51-5.64.

Semi Precious

Semi Precious


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