Proustite and Nephrite Physical Properties

Proustite

Nephrite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.51-5.642.90-3.10

1 7.18

1.5 Fracture

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

Splintery, Granular, Splintery, Granular, Gemstones (2009)

1.6 Cleavage

Distinct on {10 1 1}

Not Available

1.7 Mohs Hardness

2.56-6.5

2 10

1.8 Chemical Composition

Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Proustite and Nephrite Chemical Formula

While comparing Proustite and Nephrite 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 Nephrite chemical formula.

Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Compare Black Gemstones

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Proustite and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Proustite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Proustite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Proustite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.