Foitite and Dumortierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.17
3.26-3.41
Fracture
Handbook of mineralogy (2001)
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
None
Distinct on {100}, poor on {110}; parting on {001}
Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
AlAl6O3BSi3O18
Foitite and Dumortierite Chemical Formula
While comparing Foitite 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 Foitite and Dumortierite chemical formula.
- Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Foitite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Foitite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Foitite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.