Pectolite and Diopside Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.90
  
3.22-3.40
  
Fracture
Uneven, Gemstones (2009), Splintery
  
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
  
Cleavage
Perfect on {100} and {001}
  
Distinct/good on {110}
  
Mohs Hardness
4.5-5
  
5-6
  
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
  
CaMgSi2O6
  
Pectolite and Diopside Chemical Formula
While comparing Pectolite 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 Pectolite and Diopside chemical formula.
- Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
- Chemical formula of Diopside- CaMgSi2O6
Pectolite and Diopside Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pectolite and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Diopside Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.22-3.40 whereas that of Diopside is 3.22-3.40.