Tanzanite and Sinhalite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
3.35
  
3.46-3.50
  
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
Perfect {010}, imperfect {100}
  
Not Available
  
Mohs Hardness
6.5-7
  
6-7
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Tanzanite and Sinhalite Chemical Formula
While comparing Tanzanite and Sinhalite 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 Tanzanite and Sinhalite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Sinhalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Sinhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Sinhalite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.46-3.50 whereas that of Sinhalite is 3.46-3.50.