Diopside and Sugilite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.22-3.40
  
2.69-2.79
  
Fracture
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Distinct/good on {110}
  
Poor on {0001}
  
Mohs Hardness
5-6
  
5.5-6.5
  
Chemical Composition
CaMgSi2O6
  
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Diopside and Sugilite Chemical Formula
While comparing Diopside and Sugilite 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 Sugilite chemical formula.
- Chemical formula of Diopside- CaMgSi2O6
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Diopside and Sugilite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Diopside and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diopside and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Diopside is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.