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Piemontite
Piemontite

Austinite
Austinite



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Piemontite
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Austinite

Piemontite and Austinite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
-9999
Uneven, Splintery
[001] good, [100] distinct
6-6.5
Ca2Al3(SiO4)(Si2O7)O(OH)
 
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)

Piemontite and Austinite Chemical Formula

While comparing Piemontite 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 Piemontite and Austinite chemical formula.

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Piemontite and Austinite Specific Gravity

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