Purpurite and Spodumene Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.2-3.4
  
3.15-3.21
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
  
Uneven, Subconchoidal, Gemstones (2009)
  
Cleavage
[100] [001] perfect
  
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
Mohs Hardness
4-4.5
  
6-7
  
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
  
LiAlSi2O6
  
Purpurite and Spodumene Chemical Formula
While comparing Purpurite 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 Purpurite and Spodumene chemical formula.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Spodumene- LiAlSi2O6
Purpurite and Spodumene Specific Gravity
Another important criteria for qualitative analysis of gemstones is Purpurite and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.