Azurite and Kyanite Physical Properties

Azurite

Kyanite

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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

3.70-3.90

3.53-3.65

1.5 Fracture

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

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

3.5-4

4-7

1.8 Chemical Composition

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

Not Available

Azurite and Kyanite Chemical Formula

While comparing Azurite and Kyanite 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 Kyanite chemical formula.

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

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Azurite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.