Erythrite and Dumortierite Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
3.26-3.41
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
Not Available
7-8.5
Chemical Composition
Co3(AsO4)2•8(H2O)
AlAl6O3BSi3O18
Erythrite and Dumortierite Chemical Formula
While comparing Erythrite 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 Erythrite and Dumortierite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Erythrite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.