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Austinite
Austinite

Sapphire
Sapphire



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Austinite
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Sapphire

Austinite and Sapphire Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
insoluble

Durability

-
-

Specific Gravity

4.123.95-4.03
1 7.18
👆🏻

Fracture

Uneven
Uneven

Cleavage

Good in two directions parallel to the prism faces {110}
None, but may exhibit parting

Mohs Hardness

4-4.59
2 10
👆🏻

Chemical Composition

CaZn(AsO4)(OH)
Al 2 O 3

Austinite and Sapphire Chemical Formula

While comparing Austinite and Sapphire 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 Sapphire chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Sapphire- Al 2 O 3

Austinite and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.