Dumortierite and Violane Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.26-3.41
  
3.22-3.40
  
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
  
Not Available
  
Mohs Hardness
7-8.5
  
5-6
  
Chemical Composition
AlAl6O3BSi3O18
  
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
  
Dumortierite and Violane Chemical Formula
While comparing Dumortierite and Violane 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 Violane chemical formula.
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
- Chemical formula of Violane- (Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
Dumortierite and Violane Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dumortierite and Violane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Violane Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 3.22-3.40 whereas that of Violane is 3.22-3.40.