Adamite and Covellite Physical Properties

Adamite

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

4.32-4.48

4.6-4.76

1.5 Fracture

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

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

1.6 Cleavage

{101}, good; {010}, poor

Perfect on {0001}

1.7 Mohs Hardness

3.5

Not Available

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

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

Adamite and Covellite Chemical Formula

While comparing Adamite 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 Adamite and Covellite chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Adamite and Covellite Specific Gravity

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