Fire Opal and Prase Opal Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.97-2.22
  
1.98-2.25
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
6-6.5
  
5-6.5
  
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
SiO 2 + H 2OUlrich Henn and Claudio C.
  
Fire Opal and Prase Opal Chemical Formula
While comparing Fire Opal and Prase Opal 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 Fire Opal and Prase Opal chemical formula.
- Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Fire Opal and Prase Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Fire Opal and Prase Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fire Opal and Prase Opal Optical Properties during the identification of gemstone. Specific gravity of Fire Opal is 1.98-2.25 whereas that of Prase Opal is 1.98-2.25.