Covellite and Cryolite Physical Properties

Covellite

Cryolite

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1 Physical Properties

1.1 Tenacity

Flexible

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.6-4.762.97

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

Perfect on {0001}

None observed

1.7 Mohs Hardness

Not Available2.5

2 10

1.8 Chemical Composition

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

Na 3AlF 6Ulrich Henn and Claudio C.

Covellite and Cryolite Chemical Formula

While comparing Covellite and Cryolite 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 Cryolite chemical formula.

Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

Compare Blue Gemstones

Covellite Vs Fluorapatite

Covellite Vs Falcons Eye

Covellite Vs Elbaite

Covellite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 2.97 whereas that of Cryolite is 2.97.