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