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Pleonaste
Pleonaste

Austinite
Austinite



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Pleonaste
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Austinite

Pleonaste and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

3.804.12
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

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

Mohs Hardness

84-4.5
2 10
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Chemical Composition

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
CaZn(AsO4)(OH)

Pleonaste and Austinite Chemical Formula

While comparing Pleonaste 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 Pleonaste and Austinite chemical formula.

  • Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Pleonaste and Austinite Specific Gravity

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