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Amethyst
Amethyst

Austinite
Austinite



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Amethyst
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Austinite

Amethyst and Austinite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2
 
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)

Amethyst and Austinite Chemical Formula

While comparing Amethyst 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 Amethyst and Austinite chemical formula.

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Amethyst and Austinite Specific Gravity

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