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Moldavite
Moldavite

Austinite
Austinite



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Moldavite
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Austinite

Moldavite and Austinite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Easily soluble in cold dilute HCl
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.32-2.38
4.12
1.5 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Brittle, Uneven, Brittle, Uneven
1.6 Cleavage
Not Available
Good in two directions parallel to the prism faces {110}
1.7 Mohs Hardness
5.5
4-4.5
1.8 Chemical Composition
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
CaZn(AsO4)(OH)

Moldavite and Austinite Chemical Formula

While comparing Moldavite 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 Moldavite and Austinite chemical formula.

  • Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Moldavite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moldavite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moldavite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Moldavite is 4.12 whereas that of Austinite is 4.12.