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