Diopside and Spodumene Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.22-3.40
  
3.15-3.21
  
Fracture
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
  
Uneven, Subconchoidal, Gemstones (2009)
  
Cleavage
Distinct/good on {110}
  
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
Mohs Hardness
5-6
  
6-7
  
Chemical Composition
CaMgSi2O6
  
LiAlSi2O6
  
Diopside and Spodumene Chemical Formula
While comparing Diopside 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 Diopside and Spodumene chemical formula.
- Chemical formula of Diopside- CaMgSi2O6
- Chemical formula of Spodumene- LiAlSi2O6
Diopside and Spodumene Specific Gravity
Another important criteria for qualitative analysis of gemstones is Diopside and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diopside and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Diopside is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.