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Reference Values of Gems
Database updated: 15 Jan 2017
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Ametrine

  • Color: bi-color, violet / yellow
  • Hardness: 7
  • Refractive index: 1.54 - 1.55
  • Density: 2.65 - 2.66
  • Chemical composition: SiO2
  • Crystal structure: hexagonal
  • Lustre: vitreous 
  • Origins: Brazil, Bolivia, Uruguay.

Ametrine is a bi-color variety of quartz, formed by amethyst and citrine on opposite sides of a crystal. The best ametrines have intense colors and a distinct central border between the violet and yellow colors.

 

Ametrine 12.87 cts. Ametrine 14.50 cts.
Ametrine 12.87 cts.
Published under permission: Miguel Angel Lopez
Ametrine 14.50 cts.
Published under permission: Miguel Angel Lopez

 


Market values of Ametrine  

Occurrence of Ametrine  

Historical values  


 
 
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