Covellite and Purpurite Physical Properties

Covellite

Purpurite

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1 Physical Properties

1.1 Tenacity

Flexible

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.6-4.763.2-3.4

1 7.18

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on {0001}

[100] [001] perfect

1.7 Mohs Hardness

Not Available4-4.5

2 10

1.8 Chemical Composition

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

MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Covellite and Purpurite Chemical Formula

While comparing Covellite and Purpurite 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 Purpurite chemical formula.

Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Compare Blue Gemstones

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Covellite Vs Elbaite

Covellite and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.