Azurite and Vivianite Physical Properties

Azurite

Vivianite

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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

3.70-3.902.64-2.70

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

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

{010} Perfect

1.7 Mohs Hardness

3.5-4Not Available

2 10

1.8 Chemical Composition

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

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Azurite and Vivianite Chemical Formula

While comparing Azurite and Vivianite 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 Vivianite 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 Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Azurite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.