Diopside and Siderite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.22-3.40
  
3.83-3.89
  
Fracture
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
  
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
  
Cleavage
Distinct/good on {110}
  
Perfect on {01 1 1}
  
Mohs Hardness
5-6
  
3.5-4.5
  
Chemical Composition
CaMgSi2O6
  
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Diopside and Siderite Chemical Formula
While comparing Diopside 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 Diopside and Siderite chemical formula.
- Chemical formula of Diopside- CaMgSi2O6
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Diopside and Siderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Diopside and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diopside and Siderite Optical Properties during the identification of gemstone. Specific gravity of Diopside is 3.83-3.89 whereas that of Siderite is 3.83-3.89.