Proustite and Covellite Physical Properties

Proustite

Covellite

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1 Physical Properties

1.1 Tenacity

Brittle

Flexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.51-5.644.6-4.76

1 7.18

1.5 Fracture

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

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

Distinct on {10 1 1}

Perfect on {0001}

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

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Proustite and Covellite Chemical Formula

While comparing Proustite and Covellite 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 Covellite chemical formula.

Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Black Gemstones

Proustite Vs Sheen Obsidian

Proustite Vs Serendibite

Proustite Vs Schorlomite

Proustite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Proustite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Proustite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Proustite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.