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Proustite
Proustite

Melanite
Melanite



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Proustite
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Melanite

Proustite and Melanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
5.51-5.64
Uneven, Conchoidal
Distinct on {10 1 1}
2.5
Ag 3AsS 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
3.70-4.10
Conchoidal
Indistinct
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Proustite and Melanite Chemical Formula

While comparing Proustite and Melanite 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 Melanite chemical formula.

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Proustite and Melanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Proustite and Melanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Proustite Vs Melanite during the identification of gemstone. Specific gravity of Proustite is whereas that of Melanite is .