Hematite and Kainite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.00-5.30
  
2.15
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
Splintery, Conchoidal, Brittle
  
Cleavage
None, may show partings on {0001} and {10 1 1}
  
{001}, perfect
  
Mohs Hardness
6
  
2.5-3
  
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
  
Not Available
  
Hematite and Kainite Chemical Formula
While comparing Hematite and Kainite 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 Hematite and Kainite chemical formula.
- Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
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Hematite and Kainite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hematite and Kainite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Kainite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2.15 whereas that of Kainite is 2.15.