Andalusite and Tigers Eye Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.21
  
2.58-2.64
  
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
  
Gems, Sixth Edition (2006)
  
Cleavage
Good on {110}, poor on {100}
  
Indiscernible
  
Mohs Hardness
7.5
  
6.5-7
  
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
SiO2
  
Andalusite and Tigers Eye Chemical Formula
While comparing Andalusite 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 Andalusite and Tigers Eye chemical formula.
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Tigers Eye- SiO2
Andalusite and Tigers Eye Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andalusite and Tigers Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Tigers Eye Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.58-2.64 whereas that of Tigers Eye is 2.58-2.64.