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