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Austinite
Austinite

Charoite
Charoite



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Austinite
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Charoite

Austinite and Charoite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
-

Durability

-
-

Specific Gravity

4.122.54-2.78
1 7.18
👆🏻

Fracture

Uneven
Conchoidal

Cleavage

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

Mohs Hardness

4-4.55-6
2 10
👆🏻

Chemical Composition

CaZn(AsO4)(OH)
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Charoite Chemical Formula

While comparing Austinite and Charoite 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 Charoite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Charoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Charoite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.54-2.78 whereas that of Charoite is 2.54-2.78.