Pectolite and Cuprite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.90
  
5.85-6.15
  
Fracture
Uneven, Gemstones (2009), Splintery
  
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Perfect on {100} and {001}
  
Fair in four directions forming octahedrons
  
Mohs Hardness
4.5-5
  
3.5-4
  
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
  
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Pectolite and Cuprite Chemical Formula
While comparing Pectolite and Cuprite 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 Cuprite chemical formula.
- Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pectolite and Cuprite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pectolite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.