Spinel and Cuprite Physical Properties
Tenacity
Not Available
Brittle
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
5.85-6.15
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
None, but may exhibit slight parting
Fair in four directions forming octahedrons
Chemical Composition
MgAl2O4
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Cuprite Chemical Formula
While comparing Spinel and Cuprite 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 Cuprite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Cuprite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.