Proustite and Pyrophyllite Physical Properties

Proustite

Pyrophyllite

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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

5.51-5.642.65-2.90

1 7.18

1.5 Fracture

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

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Distinct on {10 1 1}

{001} Perfect

1.7 Mohs Hardness

2.5Not Available

2 10

1.8 Chemical Composition

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

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Proustite and Pyrophyllite Chemical Formula

While comparing Proustite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Black Gemstones

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Proustite Vs Serendibite

Proustite Vs Schorlomite

Proustite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Proustite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Proustite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Proustite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.