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Painite
Painite

Austinite
Austinite



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Painite
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Austinite

Painite and Austinite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

4.00-4.034.12
1 7.18
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Fracture

Conchoidal
Uneven

Cleavage

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

Mohs Hardness

7.5-84-4.5
2 10
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Chemical Composition

CaZrBAl 9O 18Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)

Painite and Austinite Chemical Formula

While comparing Painite 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 Painite and Austinite chemical formula.

  • Chemical formula of Painite- CaZrBAl 9O 18Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Painite and Austinite Specific Gravity

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