Omphacite and Covellite Physical Properties

Omphacite

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

3.16-3.434.6-4.76

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

{110} Good, {110} Good

Perfect on {0001}

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

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

Omphacite and Covellite Chemical Formula

While comparing Omphacite 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 Omphacite and Covellite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Green Gemstones

Omphacite Vs Powellite

Omphacite Vs Pleonaste

Omphacite Vs Prase Opal

Omphacite and Covellite Specific Gravity

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