Covellite and Hardystonite Physical Properties
Tenacity
Flexible
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
3.396-3.443
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Brittle, Metallic
Cleavage
Perfect on {0001}
[001] good, [100] and [110] fair
Mohs Hardness
Not Available
3-4
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Covellite and Hardystonite Chemical Formula
While comparing Covellite and Hardystonite 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 Hardystonite chemical formula.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Covellite and Hardystonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Covellite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.