Achroite and Tigers Eye Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90-3.40
  
2.58-2.64
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Gems, Sixth Edition (2006)
  
Cleavage
Not Available
  
Indiscernible
  
Mohs Hardness
7-7.5
  
6.5-7
  
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  
SiO2
  
Achroite and Tigers Eye Chemical Formula
While comparing Achroite and Tigers Eye 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 Achroite and Tigers Eye chemical formula.
- Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
- Chemical formula of Tigers Eye- SiO2
Achroite and Tigers Eye Specific Gravity
Another important criteria for qualitative analysis of gemstones is Achroite and Tigers Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Tigers Eye Optical Properties during the identification of gemstone. Specific gravity of Achroite is 2.58-2.64 whereas that of Tigers Eye is 2.58-2.64.