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Austinite
Austinite

Chalcedony
Chalcedony



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Austinite
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Chalcedony

Austinite and Chalcedony Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
Soluble

Durability

-
-

Specific Gravity

4.122.55-2.70
1 7.18
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Fracture

Uneven
Uneven, Splintery, Conchoidal

Cleavage

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

Mohs Hardness

4-4.56.5-7
2 10
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Chemical Composition

CaZn(AsO4)(OH)
SiO2

Austinite and Chalcedony Chemical Formula

While comparing Austinite and Chalcedony 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 Chalcedony chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Chalcedony- SiO2

Austinite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.