Corundum and Antigorite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.90-4.05
  
2.58-2.80
  
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
  
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
  
Cleavage
None – parting in 3 directions
  
{001} Good
  
Mohs Hardness
9
  
5-5.5
  
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
  
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Corundum and Antigorite Chemical Formula
While comparing Corundum 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 Corundum and Antigorite chemical formula.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Corundum and Antigorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Corundum and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.