Azurite and Sapphire Physical Properties

Azurite

Sapphire

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-3.903.95-4.03

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

None, but may exhibit parting

1.7 Mohs Hardness

3.5-49

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Azurite and Sapphire Chemical Formula

While comparing Azurite and Sapphire 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 Sapphire 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 Sapphire- Al ₂ O ₃

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Azurite and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.