Precious Opal and Falcons Eye Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.25
  
2.58-2.64
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
  
Gemstones of the world (2001)
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
5-6.5
  
7
  
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
  
SiO 2Walter Schumann , Gemstones of the world (2001)
  
Precious Opal and Falcons Eye Chemical Formula
While comparing Precious Opal and Falcons Eye 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 Precious Opal and Falcons Eye chemical formula.
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
- Chemical formula of Falcons Eye- SiO 2Walter Schumann , Gemstones of the world (2001)
Precious Opal and Falcons Eye Specific Gravity
Another important criteria for qualitative analysis of gemstones is Precious Opal and Falcons Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Falcons Eye Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 2.58-2.64 whereas that of Falcons Eye is 2.58-2.64.