Antigorite and Cordierite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.80
  
2.57-2.66
  
Fracture
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
  
Subconchoidal, Conchoidal, Brittle
  
Cleavage
{001} Good
  
Fair on {100}, poor on {001} and {010}
  
Mohs Hardness
5-5.5
  
7-7.5
  
Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Mg2Al4Si5O18
  
Antigorite and Cordierite Chemical Formula
While comparing Antigorite and Cordierite 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 Antigorite and Cordierite chemical formula.
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Cordierite- Mg2Al4Si5O18
Antigorite and Cordierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Antigorite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Antigorite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Antigorite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.