Harlequin Opal and Riebeckite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.50
  
3.28-3.44
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Uneven, Splintery, Brittle
  
Cleavage
Not Available
  
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
  
Mohs Hardness
5.5-6.5
  
5.0-6.0
  
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Not Available
  
Harlequin Opal and Riebeckite Chemical Formula
While comparing Harlequin Opal and Riebeckite 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 Harlequin Opal and Riebeckite chemical formula.
- Chemical formula of Harlequin Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
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Harlequin Opal and Riebeckite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Harlequin Opal and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Harlequin Opal and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Harlequin Opal is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.