Azurite and Cobaltite Physical Properties

Azurite

Cobaltite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-3.906.3

1 7.18

1.5 Fracture

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

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

Perfect on {011}, fair on {100}, poor on {110}

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

3.5-45.5

2 10

1.8 Chemical Composition

Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CoAsSAnthony et al , Handbook of mineralogy (2001)

Azurite and Cobaltite Chemical Formula

While comparing Azurite and Cobaltite 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 Azurite and Cobaltite chemical formula.

Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Azurite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 6.3 whereas that of Cobaltite is 6.3.