Magnesite and Antigorite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Effervesces in hot HCl
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.92-3.12
  
2.58-2.80
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
  
Cleavage
[10 1 1] perfect
  
{001} Good
  
Mohs Hardness
3.5-4.5
  
5-5.5
  
Chemical Composition
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Magnesite and Antigorite Chemical Formula
While comparing Magnesite and Antigorite 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 Magnesite and Antigorite chemical formula.
- Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Magnesite and Antigorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Magnesite and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.