Shattuckite and Austinite Physical Properties

Shattuckite

Austinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.80-4.154.12

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

perfect along [010] and [100]

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

1.7 Mohs Hardness

3.5-44-4.5

2 10

1.8 Chemical Composition

Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaZn(AsO4)(OH)

Shattuckite and Austinite Chemical Formula

While comparing Shattuckite and Austinite 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 Shattuckite and Austinite chemical formula.

Chemical formula of Shattuckite- Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Austinite- CaZn(AsO4)(OH)

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Shattuckite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shattuckite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shattuckite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Shattuckite is 4.12 whereas that of Austinite is 4.12.