Siderite and Andesine Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.83-3.89
  
2.65-2.69
  
Fracture
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Perfect on {01 1 1}
  
Perfect on {001}, good on {010}
  
Mohs Hardness
3.5-4.5
  
6-6.5
  
Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Na,Ca)Al1-2Si3-2O8
  
Siderite and Andesine Chemical Formula
While comparing Siderite and Andesine 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 Siderite and Andesine chemical formula.
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Siderite and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Siderite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Siderite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.