Azurite and Willemite Physical Properties

Azurite

Willemite

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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

3.70-3.90

3.89-4.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

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

{0001}, {11 2 0} imperfect

1.7 Mohs Hardness

3.5-4

5.5

1.8 Chemical Composition

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

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Azurite and Willemite Chemical Formula

While comparing Azurite and Willemite 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 Willemite 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 Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Azurite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.