Creedite and Covellite Physical Properties

Creedite

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

2.704.6-4.76

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

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

1.6 Cleavage

Perfect on {100}

Perfect on {0001}

1.7 Mohs Hardness

4.5Not Available

2 10

1.8 Chemical Composition

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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

Creedite and Covellite Chemical Formula

While comparing Creedite 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 Creedite and Covellite chemical formula.

Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Colorless Gems

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Creedite Vs Diopside

Creedite and Covellite Specific Gravity

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