Kainite and Chalcopyrite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Soluble
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.15
  
4.1-4.3
  
Fracture
Splintery, Conchoidal, Brittle
  
Uneven, Brittle, Metallic
  
Cleavage
{001}, perfect
  
Indistinct on {011}
  
Mohs Hardness
2.5-3
  
3.5-4
  
Chemical Composition
Not Available
  
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
  
Kainite and Chalcopyrite Chemical Formula
While comparing Kainite and Chalcopyrite 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 Kainite and Chalcopyrite chemical formula.
>- Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Kainite and Chalcopyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kainite and Chalcopyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kainite and Chalcopyrite Optical Properties during the identification of gemstone. Specific gravity of Kainite is 4.1-4.3 whereas that of Chalcopyrite is 4.1-4.3.