Austinite and Hemimorphite Physical Properties

Austinite

Hemimorphite

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Physical Properties

Tenacity

Brittle

Solubility

Easily soluble in cold dilute HCl

Soluble

Durability

Specific Gravity

4.123.30-3.50

1 7.18

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Fracture

Uneven

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

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

Perfect on {110}, poor on {101}, {001} rare

Mohs Hardness

4-4.55

2 10

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Chemical Composition

CaZn(AsO4)(OH)

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Hemimorphite Chemical Formula

While comparing Austinite and Hemimorphite 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 Hemimorphite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Austinite Vs Apophyllite KF

Austinite Vs Gaspeite

Austinite Vs Gyrolite

Austinite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.