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Reference Values of Gems
Database updated: 15 Jan 2017
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Sphalerite

  • Color: green, yellow, orange, brownish orange, colorless
  • Hardness: 3.5 - 4
  • Refractive index: 2.37 - 2.40
  • Density: 3.90 - 4.05
  • Chemical composition: ZnS
  • Crystal structure: isometric
  • Origins: Mexico, USA, Spain, Bulgaria.

Sphalerite is too soft to be used in jewelry but clean crystals are very rare and interesting for collectors. Stones are generally not treated.

 

 


Market values of Sphalerite  

Occurrence of Sphalerite  

Historical values  


 
 
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