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Austinite
Austinite

Omphacite
Omphacite



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Austinite
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Omphacite

Austinite and Omphacite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
-

Durability

-
-

Specific Gravity

4.123.16-3.43
1 7.18
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Fracture

Uneven
Uneven, Conchoidal

Cleavage

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

Mohs Hardness

4-4.55-6
2 10
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Chemical Composition

CaZn(AsO4)(OH)
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Austinite and Omphacite Chemical Formula

While comparing Austinite and Omphacite 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 Omphacite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Austinite and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.