Serandite and Dumortierite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.52
  
3.26-3.41
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)
  
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
Cleavage
{100} Perfect, {001} Perfect
  
Distinct on {100}, poor on {110}; parting on {001}
  
Mohs Hardness
5-5.5
  
7-8.5
  
Chemical Composition
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
  
AlAl6O3BSi3O18
  
Serandite and Dumortierite Chemical Formula
While comparing Serandite 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 Serandite and Dumortierite chemical formula.
- Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Serandite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Serandite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serandite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Serandite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.