Tanzanite and Oligoclase Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
3.35
  
2.62-2.67
  
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
  
Cleavage
Perfect {010}, imperfect {100}
  
From the Greek, oligos and kasein, little cleavage.
  
Mohs Hardness
6.5-7
  
6-6.5
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Tanzanite and Oligoclase Chemical Formula
While comparing Tanzanite and Oligoclase 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 Oligoclase chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Oligoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.