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Austinite
Austinite

Malachite
Malachite



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Austinite
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Malachite

Austinite and Malachite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
-

Durability

-
-

Specific Gravity

4.123.25-4.10
1 7.18
👆🏻

Fracture

Uneven
Conchoidal, Uneven

Cleavage

Good in two directions parallel to the prism faces {110}
Perfect on { 2 01} fair on {010}

Mohs Hardness

4-4.53.5-4
2 10
👆🏻

Chemical Composition

CaZn(AsO4)(OH)
Cu2CO3(OH)2

Austinite and Malachite Chemical Formula

While comparing Austinite and Malachite 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 Malachite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Malachite- Cu2CO3(OH)2

Austinite and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Malachite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.25-4.10 whereas that of Malachite is 3.25-4.10.