Gypsum and Heliodor Physical Properties
Tenacity
Flexible
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.40
  
Not Available
  
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
  
Not Available
  
Cleavage
Perfect on {010}, distinct on {100}
  
Not Available
  
Mohs Hardness
2
  
7.5
  
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
  
Not Available
  
Gypsum and Heliodor Chemical Formula
While comparing Gypsum and Heliodor 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 Heliodor chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
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Gypsum and Heliodor Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Heliodor Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Heliodor Optical Properties during the identification of gemstone. Specific gravity of Gypsum is Not Available whereas that of Heliodor is Not Available.