Norbergite and Dumortierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.177
3.26-3.41
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
{???} Distinct
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
6-6.5
7-8.5
Chemical Composition
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
AlAl6O3BSi3O18
Norbergite and Dumortierite Chemical Formula
While comparing Norbergite 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 Norbergite and Dumortierite chemical formula.
- Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Norbergite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Norbergite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.