Azurite and Proustite Physical Properties

Azurite

Proustite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-3.905.51-5.64

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

Distinct on {10 1 1}

1.7 Mohs Hardness

3.5-42.5

2 10

1.8 Chemical Composition

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

Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Azurite and Proustite Chemical Formula

While comparing Azurite and Proustite 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 Proustite 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 Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Azurite and Proustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Proustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Proustite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 5.51-5.64 whereas that of Proustite is 5.51-5.64.