Prase and Sard Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.64-2.69
  
2.58-2.63
  
Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
7
  
6.5-7
  
Chemical Composition
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
SiO 2Ulrich Henn and Claudio C.
  
Prase and Sard Chemical Formula
While comparing Prase and Sard 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 Prase and Sard chemical formula.
- Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Prase and Sard Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prase and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase and Sard Optical Properties during the identification of gemstone. Specific gravity of Prase is 2.58-2.63 whereas that of Sard is 2.58-2.63.