Wood Opal and Feldspar Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.50
  
2.56-2.75
  
Fracture
Not Available
  
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
  
Cleavage
Not Available
  
two or three
  
Mohs Hardness
5.5-6.5
  
6-6.5
  
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Not Available
  
Wood Opal and Feldspar Chemical Formula
While comparing Wood Opal and Feldspar 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 Wood Opal and Feldspar chemical formula.
- Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
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Wood Opal and Feldspar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Wood Opal and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wood Opal and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Wood Opal is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.