Dumortierite and Marcasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.26-3.41
4.80-4.90
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{010} Indistinct
Mohs Hardness
7-8.5
6-6.5
Chemical Composition
AlAl6O3BSi3O18
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dumortierite and Marcasite Chemical Formula
While comparing Dumortierite and Marcasite 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 Marcasite chemical formula.
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
- Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dumortierite and Marcasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dumortierite and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.