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