Austinite and Hemimorphite Physical Properties

Austinite

Hemimorphite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Easily soluble in cold dilute HCl

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.123.30-3.50

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

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

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

1.7 Mohs Hardness

4-4.55

2 10

1.8 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

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Austinite Vs Clintonite

Austinite Vs Cordierite

Austinite Vs Apophyllite KF

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.