Andean Opal and Hibonite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
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Not Available
  
Durability
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Not Available
  
Specific Gravity
Not Available
  
3.84
  
Fracture
Not Available
  
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Not Available
  
{0001} good, {10 1 0} parting
  
Mohs Hardness
Not Available
  
7.5-8
  
Chemical Composition
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(Ca,Ce)(Al,Ti,Mg)12O19
  
Andean Opal and Hibonite Chemical Formula
While comparing Andean Opal and Hibonite 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 Andean Opal and Hibonite chemical formula.
>- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Andean Opal and Hibonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andean Opal and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andean Opal and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Andean Opal is 3.84 whereas that of Hibonite is 3.84.