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Melanite
Melanite

Proustite
Proustite



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Melanite
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Proustite

Melanite and Proustite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.70-4.10
Conchoidal
Indistinct
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
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

Melanite and Proustite Chemical Formula

While comparing Melanite 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 Melanite and Proustite chemical formula.

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Melanite and Proustite Specific Gravity

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