Corundum and Albite Physical Properties
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.60-2.65
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
Cleavage
None – parting in 3 directions
Perfect on {001}, very good on {010}, imperfect on {110}
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Corundum and Albite Chemical Formula
While comparing Corundum and Albite 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 Corundum and Albite chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Corundum and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Albite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.60-2.65 whereas that of Albite is 2.60-2.65.