Austinite and Azurite Physical Properties

Austinite

Azurite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Easily soluble in cold dilute HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.123.70-3.90

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

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

1.6 Cleavage

Good in two directions parallel to the prism faces {110}

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

1.7 Mohs Hardness

4-4.53.5-4

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

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

Austinite and Azurite Chemical Formula

While comparing Austinite and Azurite 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 Austinite and Azurite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Austinite and Azurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Azurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Azurite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.70-3.90 whereas that of Azurite is 3.70-3.90.