Sapphire and Azurite Physical Properties

Sapphire

Azurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.70-3.90

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

None, but may exhibit parting

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

1.7 Mohs Hardness

93.5-4

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Sapphire and Azurite Chemical Formula

While comparing Sapphire and Azurite 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 Sapphire and Azurite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sapphire and Azurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Azurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Azurite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.70-3.90 whereas that of Azurite is 3.70-3.90.