Gypsum and Peridot Physical Properties
Tenacity
Flexible
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.40
  
1.54-1.55
  
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
  
Conchoidal
  
Cleavage
Perfect on {010}, distinct on {100}
  
Poor
  
Mohs Hardness
2
  
6.5-7
  
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
  
(Mg,Fe)2SiO4
  
Gypsum and Peridot Chemical Formula
While comparing Gypsum and Peridot 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 Peridot chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Peridot- (Mg,Fe)2SiO4
Gypsum and Peridot Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Peridot Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 1.54-1.55 whereas that of Peridot is 1.54-1.55.