Apache Tear and Crystal Opal Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
1.97-2.22
  
Fracture
Conchoidal
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
5-5.5
  
5.5-6.5
  
Chemical Composition
Not Available
  
SiO 2 + H 2OUlrich Henn and Claudio C.
  
Apache Tear and Crystal Opal Chemical Formula
While comparing Apache Tear and Crystal 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 Apache Tear and Crystal Opal chemical formula.
>- Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Apache Tear and Crystal Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apache Tear and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apache Tear and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Apache Tear is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.