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Carnallite
Carnallite

Austinite
Austinite



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Carnallite
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Austinite

Carnallite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

Soluble
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

1.64.12
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

None
Good in two directions parallel to the prism faces {110}

Mohs Hardness

2.54-4.5
2 10
👆🏻

Chemical Composition

KMgCl3•6(H2O)
CaZn(AsO4)(OH)

Carnallite and Austinite Chemical Formula

While comparing Carnallite 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 Carnallite and Austinite chemical formula.

  • Chemical formula of Carnallite- KMgCl3•6(H2O)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Carnallite and Austinite Specific Gravity

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