Pezzottaite and Dumortierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.14
3.26-3.41
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
Imperfect; basal
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
7.5-8
7-8.5
Chemical Composition
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
AlAl6O3BSi3O18
Pezzottaite and Dumortierite Chemical Formula
While comparing Pezzottaite and Dumortierite 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 Dumortierite chemical formula.
- Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Pezzottaite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pezzottaite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.