Hackmanite and Corundum Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.27-2.33
3.90-4.05
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Difficult, Fibrous
Cleavage
Not Available
None – parting in 3 directions
Chemical Composition
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 2O 3Arthur Thomas , Gemstones (2009)
Hackmanite and Corundum Chemical Formula
While comparing Hackmanite and Corundum 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 Corundum chemical formula.
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
Hackmanite and Corundum Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hackmanite and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hackmanite and Corundum Optical Properties during the identification of gemstone. Specific gravity of Hackmanite is 3.90-4.05 whereas that of Corundum is 3.90-4.05.