Fluorite and Wood Opal Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
slightly water soluble and in hot hydrochloric acid
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.00-3.25
  
1.98-2.50
  
Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
Not Available
  
Cleavage
Octahedral, perfect on {111}, parting on {011}
  
Not Available
  
Mohs Hardness
4
  
5.5-6.5
  
Chemical Composition
CaF2
  
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Fluorite and Wood Opal Chemical Formula
While comparing Fluorite and Wood 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 Fluorite and Wood Opal chemical formula.
- Chemical formula of Fluorite- CaF2
- Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Fluorite and Wood Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Fluorite and Wood Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Wood Opal Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 1.98-2.50 whereas that of Wood Opal is 1.98-2.50.