Sard and Covellite Physical Properties

Sard

Covellite

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1 Physical Properties

1.1 Tenacity

Not Available

Flexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.634.6-4.76

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

Perfect on {0001}

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sard and Covellite Chemical Formula

While comparing Sard 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 Sard and Covellite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Sard and Covellite Specific Gravity

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