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Atacamite
Atacamite

Austinite
Austinite



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Atacamite
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Austinite

Atacamite and Austinite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

3.745-3.7764.12
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

Perfect on {010}, fair on {101}
Good in two directions parallel to the prism faces {110}

Mohs Hardness

3-3.54-4.5
2 10
👆🏻

Chemical Composition

Cu2Cl(OH)3
CaZn(AsO4)(OH)

Atacamite and Austinite Chemical Formula

While comparing Atacamite 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 Atacamite and Austinite chemical formula.

  • Chemical formula of Atacamite- Cu2Cl(OH)3
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Atacamite and Austinite Specific Gravity

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