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Austinite
Austinite

Grandidierite
Grandidierite



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Austinite
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Grandidierite

Austinite and Grandidierite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Easily soluble in cold dilute HCl
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.122.85-3.00
Amber
1 7.18
1.5 Fracture
Brittle, Uneven, Brittle, Uneven
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
1.6 Cleavage
Good in two directions parallel to the prism faces {110}
Perfect
1.7 Mohs Hardness
4-4.57.5
Amber
2 10
1.8 Chemical Composition
CaZn(AsO4)(OH)
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Austinite and Grandidierite Chemical Formula

While comparing Austinite and Grandidierite 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 Grandidierite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Austinite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.