Corundum and Pezzottaite Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.90-3.14
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
None – parting in 3 directions
Imperfect; basal
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Corundum and Pezzottaite Chemical Formula
While comparing Corundum and Pezzottaite 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 Pezzottaite chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Corundum and Pezzottaite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.