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Austinite
Austinite

Smithsonite
Smithsonite



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Austinite
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Smithsonite

Austinite and Smithsonite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Easily soluble in cold dilute HCl
-

Durability

-
-

Specific Gravity

4.124.00-4.65
1 7.18
👆🏻

Fracture

Uneven
Uneven, Sub-Conchoidal

Cleavage

Good in two directions parallel to the prism faces {110}
Perfect on [1011]

Mohs Hardness

4-4.55-5.5
2 10
👆🏻

Chemical Composition

CaZn(AsO4)(OH)
ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Smithsonite Chemical Formula

While comparing Austinite and Smithsonite 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 Smithsonite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Smithsonite- ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Smithsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Smithsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Smithsonite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 4.00-4.65 whereas that of Smithsonite is 4.00-4.65.