Hackmanite and Spinel Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
2.27-2.33
3.64-3.66
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Not Available
None, but may exhibit slight parting
Chemical Composition
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
MgAl2O4
Hackmanite and Spinel Chemical Formula
While comparing Hackmanite 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 Hackmanite and Spinel chemical formula.
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Spinel- MgAl2O4
Hackmanite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hackmanite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hackmanite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Hackmanite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.