Kainite and Siderite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.15
  
3.83-3.89
  
Fracture
Splintery, Conchoidal, Brittle
  
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
  
Cleavage
{001}, perfect
  
Perfect on {01 1 1}
  
Mohs Hardness
2.5-3
  
3.5-4.5
  
Chemical Composition
Not Available
  
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Kainite and Siderite Chemical Formula
While comparing Kainite and Siderite 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 Siderite chemical formula.
>- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Kainite and Siderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kainite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kainite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Kainite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.