Antigorite and Esperite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.80
  
4.28-4.42
  
Fracture
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
  
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
  
Cleavage
{001} Good
  
Distinct on [010] and [100] poor on [101]
  
Mohs Hardness
5-5.5
  
5-5.5
  
Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
  
Antigorite and Esperite Chemical Formula
While comparing Antigorite and Esperite 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 Esperite chemical formula.
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Antigorite and Esperite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Antigorite and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Antigorite and Esperite Optical Properties during the identification of gemstone. Specific gravity of Antigorite is 4.28-4.42 whereas that of Esperite is 4.28-4.42.