Tanzanite and Axinite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
3.35
  
3.26-3.36
  
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect {010}, imperfect {100}
  
Good on {100}
  
Mohs Hardness
6.5-7
  
6.5-7
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  
Tanzanite and Axinite Chemical Formula
While comparing Tanzanite and Axinite 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 Axinite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Tanzanite and Axinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Axinite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.26-3.36 whereas that of Axinite is 3.26-3.36.