Dumortierite and Eosphorite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.26-3.41
  
3.05-3.08
  
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
Subconchoidal, Uneven, Conchoidal, Uneven
  
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
  
Poor on {100}
  
Mohs Hardness
7-8.5
  
5
  
Chemical Composition
AlAl6O3BSi3O18
  
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Dumortierite and Eosphorite Chemical Formula
While comparing Dumortierite and Eosphorite 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 Eosphorite chemical formula.
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
- Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Dumortierite and Eosphorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dumortierite and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.