Hackmanite and Austinite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
2.27-2.33
4.12
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Brittle, Uneven, Brittle, Uneven
Cleavage
Not Available
Good in two directions parallel to the prism faces {110}
Mohs Hardness
5.5-6
4-4.5
Chemical Composition
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
CaZn(AsO4)(OH)
Hackmanite and Austinite Chemical Formula
While comparing Hackmanite 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 Hackmanite and Austinite chemical formula.
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Hackmanite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hackmanite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hackmanite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Hackmanite is 4.12 whereas that of Austinite is 4.12.