Tanzanite and Uvite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
3.35
  
2.97-3.14
  
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Uneven, Conchoidal, Brittle
  
Cleavage
Perfect {010}, imperfect {100}
  
{1011} Indistinct
  
Mohs Hardness
6.5-7
  
Not Available
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Tanzanite and Uvite Chemical Formula
While comparing Tanzanite and Uvite 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 Uvite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Tanzanite and Uvite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Uvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Uvite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.97-3.14 whereas that of Uvite is 2.97-3.14.