Cassiterite and Tanzanite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
6.86-7.03
  
3.35
  
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Perfect {010}, imperfect {100}
  
Mohs Hardness
6-7
  
6.5-7
  
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Ca2Al3(SiO4)3(OH)
  
Cassiterite and Tanzanite Chemical Formula
While comparing Cassiterite and Tanzanite 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 Cassiterite and Tanzanite chemical formula.
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
Cassiterite and Tanzanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cassiterite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.35 whereas that of Tanzanite is 3.35.