Covellite and Spinel Physical Properties
Tenacity
Flexible
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
3.64-3.66
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {0001}
None, but may exhibit slight parting
Mohs Hardness
Not Available
8
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
MgAl2O4
Covellite and Spinel Chemical Formula
While comparing Covellite and Spinel 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 Spinel chemical formula.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Spinel- MgAl2O4
Covellite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Covellite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Covellite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.