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Powellite
Powellite

Austinite
Austinite



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Powellite
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Austinite

Powellite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

4.234.12
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

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

Mohs Hardness

3.5-44-4.5
2 10
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Chemical Composition

CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
CaZn(AsO4)(OH)

Powellite and Austinite Chemical Formula

While comparing Powellite 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 Powellite and Austinite chemical formula.

  • Chemical formula of Powellite- CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Powellite and Austinite Specific Gravity

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