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Austinite
Austinite

Bertrandite
Bertrandite



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Austinite
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Bertrandite

Austinite and Bertrandite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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)
 
-
-
-
2.59-2.60
-
{001} Perfect, {110} Distinct, {101} Distinct
6-7
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Austinite and Bertrandite Chemical Formula

While comparing Austinite and Bertrandite 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 Bertrandite chemical formula.

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Austinite and Bertrandite Specific Gravity

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