Dumortierite and Pyrite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble in water
Durability
Not Available
Not Available
Specific Gravity
3.26-3.41
5.00-5.20
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
7-8.5
6-6.5
Chemical Composition
AlAl6O3BSi3O18
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dumortierite and Pyrite Chemical Formula
While comparing Dumortierite and Pyrite 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 Dumortierite and Pyrite chemical formula.
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dumortierite and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dumortierite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.