Brookite and Dumortierite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.87-4.14
3.26-3.41
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
Poor on {120}, in traces on {001}
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
5.5-6
7-8.5
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
AlAl6O3BSi3O18
Brookite and Dumortierite Chemical Formula
While comparing Brookite 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 Brookite and Dumortierite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Brookite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.