Antigorite and Poudretteite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.80
  
2.51-2.53
  
Fracture
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
  
Conchoidal, Splintery
  
Cleavage
{001} Good
  
None
  
Mohs Hardness
5-5.5
  
5
  
Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Antigorite and Poudretteite Chemical Formula
While comparing Antigorite and Poudretteite 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 Poudretteite chemical formula.
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Antigorite and Poudretteite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Antigorite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Antigorite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Antigorite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.