Ruby and Azurite Physical Properties

Ruby

Azurite

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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

3.97-4.053.70-3.90

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

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

Ruby and Azurite Chemical Formula

While comparing Ruby 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 Ruby and Azurite chemical formula.

Chemical formula of Ruby- 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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Ruby and Azurite Specific Gravity

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