Austinite and Bytownite Physical Properties
Solubility
Easily soluble in cold dilute HCl
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.12
2.72-2.75
Fracture
Brittle, Uneven, Brittle, Uneven
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Good in two directions parallel to the prism faces {110}
Perfect on [001], good on [010], imperfect on [110]
Mohs Hardness
4-4.5
6-6.5
Chemical Composition
CaZn(AsO4)(OH)
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Austinite and Bytownite Chemical Formula
While comparing Austinite and Bytownite 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 Bytownite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Austinite and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.