Peridot and Proustite Physical Properties

Peridot

Proustite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.555.51-5.64

1 7.18

2.5 Fracture

Conchoidal

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

2.6 Cleavage

Poor

Distinct on {10 1 1}

2.7 Mohs Hardness

6.5-72.5

2 10

2.11 Chemical Composition

(Mg,Fe)₂SiO₄

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

Peridot and Proustite Chemical Formula

While comparing Peridot 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 Peridot and Proustite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Proustite Specific Gravity

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