Covellite and Pyrargyrite Physical Properties

Covellite

Pyrargyrite

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1 Physical Properties

1.1 Tenacity

Flexible

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.6-4.765.85

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

1.6 Cleavage

Perfect on {0001}

Distinct on {10 1 1}, imperfect on {01 1 2}

1.7 Mohs Hardness

Not Available2.5-3

2 10

1.8 Chemical Composition

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

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

Covellite and Pyrargyrite Chemical Formula

While comparing Covellite and Pyrargyrite 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 Covellite and Pyrargyrite chemical formula.

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

Compare Blue Gemstones

Covellite Vs Elbaite

Covellite Vs Falcons Eye

Covellite Vs Fluorapatite

Covellite and Pyrargyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Pyrargyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Pyrargyrite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 5.85 whereas that of Pyrargyrite is 5.85.