Rock Crystal and Covellite Physical Properties

Rock Crystal

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

2.654.6-4.76

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

Perfect on {0001}

1.7 Mohs Hardness

7Not Available

2 10

1.5 Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)

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

Rock Crystal and Covellite Chemical Formula

While comparing Rock Crystal 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 Rock Crystal and Covellite chemical formula.

Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Rock Crystal and Covellite Specific Gravity

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