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Reference Values of Gems
Database updated: 15 Jan 2017
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Sinhalite

  • Color: from almost colorless to yellowish green, brown
  • Hardness: 6.5 - 7
  • Refractive index: 1.67 - 1.71
  • Density: 3.47 - 3.50
  • Chemical composition: MgAl(BO4)
  • Crystal structure: orthorhombic
  • Origins: Sri Lanka, Burma, USA, Russia.

Collector's stone rarely used in jewelry. Main source is Sri Lanka. Stones are generally not treated.


 


Market values of Sinhalite  

Occurrence of Sinhalite  

Historical values  


 
 
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