Kornerupine and Spinel Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
3.25-3.45
3.64-3.66
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Good on {110}
None, but may exhibit slight parting
Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
MgAl2O4
Kornerupine and Spinel Chemical Formula
While comparing Kornerupine 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 Kornerupine and Spinel chemical formula.
- Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Spinel- MgAl2O4
Kornerupine and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kornerupine and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Spinel Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 3.64-3.66 whereas that of Spinel is 3.64-3.66.