Afghanite and Diopside Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.65
  
3.22-3.40
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
  
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
  
Cleavage
Perfect {10 1 0}
  
Distinct/good on {110}
  
Mohs Hardness
5.5-6
  
5-6
  
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
  
CaMgSi2O6
  
Afghanite and Diopside Chemical Formula
While comparing Afghanite and Diopside 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 Afghanite and Diopside chemical formula.
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Diopside- CaMgSi2O6
Afghanite and Diopside Specific Gravity
Another important criteria for qualitative analysis of gemstones is Afghanite and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Diopside Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.22-3.40 whereas that of Diopside is 3.22-3.40.