Covellite and Austinite Physical Properties
Tenacity
Flexible
Brittle
Solubility
Not Available
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
4.12
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Brittle, Uneven, Brittle, Uneven
Cleavage
Perfect on {0001}
Good in two directions parallel to the prism faces {110}
Mohs Hardness
Not Available
4-4.5
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
CaZn(AsO4)(OH)
Covellite and Austinite Chemical Formula
While comparing Covellite 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 Covellite and Austinite chemical formula.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Covellite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Covellite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 4.12 whereas that of Austinite is 4.12.