Gypsum and Antigorite Physical Properties
Tenacity
Flexible
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.40
  
2.58-2.80
  
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
  
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
  
Cleavage
Perfect on {010}, distinct on {100}
  
{001} Good
  
Mohs Hardness
2
  
5-5.5
  
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
  
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Gypsum and Antigorite Chemical Formula
While comparing Gypsum 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 Gypsum and Antigorite chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Gypsum and Antigorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.