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