Kainite and Hackmanite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.15
  
2.27-2.33
  
Fracture
Splintery, Conchoidal, Brittle
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
{001}, perfect
  
Not Available
  
Mohs Hardness
2.5-3
  
5.5-6
  
Chemical Composition
Not Available
  
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Kainite and Hackmanite Chemical Formula
While comparing Kainite and Hackmanite 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 Hackmanite chemical formula.
>- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Kainite and Hackmanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kainite and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kainite and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Kainite is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.