Azurite and Andradite Physical Properties

Azurite

Andradite

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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

3.70-3.903.70-4.10

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

none

1.7 Mohs Hardness

3.5-46.5-7

2 10

1.8 Chemical Composition

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

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Azurite and Andradite Chemical Formula

While comparing Azurite and Andradite 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 Andradite 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 Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Azurite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.