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Sard
Sard

Austinite
Austinite



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Sard
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Austinite

Sard and Austinite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.
 
Brittle
Easily soluble in cold dilute HCl
-
4.12
Uneven
Good in two directions parallel to the prism faces {110}
4-4.5
CaZn(AsO4)(OH)

Sard and Austinite Chemical Formula

While comparing Sard 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 Sard and Austinite chemical formula.

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Sard and Austinite Specific Gravity

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