Spodumene and Andalusite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.21
  
3.05-3.21
  
Fracture
Uneven, Subconchoidal, Gemstones (2009)
  
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
Good on {110}, poor on {100}
  
Mohs Hardness
6-7
  
7.5
  
Chemical Composition
LiAlSi2O6
  
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
Spodumene and Andalusite Chemical Formula
While comparing Spodumene and Andalusite 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 Spodumene and Andalusite chemical formula.
- Chemical formula of Spodumene- LiAlSi2O6
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Spodumene and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spodumene and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.