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