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Reference Values of Gems
Database updated: 15 Jan 2017
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Benitoite

  • Color: blue or violetish blue, colorless
  • Hardness: 6 - 6.5
  • Refractive index: 1.76 - 1.80
  • Density: 3.60 - 3.68
  • Chemical composition: BaTiSi3O9
  • Crystal structure: hexagonal
  • Lustre: vitreous
  • Origins: San Benito Country, USA.

Very rare collector's stone. Found only in San Benito County, California, USA, with specimens over 2 ct. being extremely rare.

 


Market values of Benitoite  

Occurrence of Benitoite  

Historical values  


 
 
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