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Sinhalite
Sinhalite

Austinite
Austinite



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Sinhalite
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Austinite

Sinhalite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

3.46-3.504.12
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

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

Mohs Hardness

6-74-4.5
2 10
👆🏻

Chemical Composition

MgAlBO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)

Sinhalite and Austinite Chemical Formula

While comparing Sinhalite 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 Sinhalite and Austinite chemical formula.

  • Chemical formula of Sinhalite- MgAlBO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Sinhalite and Austinite Specific Gravity

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