Siderite and Augite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.83-3.89
  
3.19-3.56
  
Fracture
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Perfect on {01 1 1}
  
{110} Perfect, {010} Indistinct
  
Mohs Hardness
3.5-4.5
  
5.5-6
  
Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
  
Siderite and Augite Chemical Formula
While comparing Siderite and Augite 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 Augite chemical formula.
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Siderite and Augite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Siderite and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Augite Optical Properties during the identification of gemstone. Specific gravity of Siderite is 3.19-3.56 whereas that of Augite is 3.19-3.56.