Azurite and Apatite Physical Properties

Azurite

Apatite

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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

3.70-3.903.16-3.23

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven

1.6 Cleavage

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

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

3.5-45

2 10

1.8 Chemical Composition

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

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Azurite and Apatite Chemical Formula

While comparing Azurite and Apatite 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 Apatite 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 Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

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Azurite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.