Spodumene and Thomsonite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.21
  
2.25-2.40
  
Fracture
Uneven, Subconchoidal, Gemstones (2009)
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
perfect on {010}; good on {100}
  
Mohs Hardness
6-7
  
5-5.5
  
Chemical Composition
LiAlSi2O6
  
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Spodumene and Thomsonite Chemical Formula
While comparing Spodumene and Thomsonite 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 Thomsonite chemical formula.
- Chemical formula of Spodumene- LiAlSi2O6
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spodumene and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spodumene and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.