Tanzanite and Serandite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
3.35
  
3.52
  
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)
  
Cleavage
Perfect {010}, imperfect {100}
  
{100} Perfect, {001} Perfect
  
Mohs Hardness
6.5-7
  
5-5.5
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Tanzanite and Serandite Chemical Formula
While comparing Tanzanite and Serandite 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 Serandite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Serandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Serandite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.52 whereas that of Serandite is 3.52.