Tanzanite and Danburite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
3.35
  
2.97-3.03
  
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
Cleavage
Perfect {010}, imperfect {100}
  
{001} Poor
  
Mohs Hardness
6.5-7
  
7
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Tanzanite and Danburite Chemical Formula
While comparing Tanzanite and Danburite 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 Danburite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Danburite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.