Spec4Gem
Spectroscopy for Gemologists
  • Home
  • Reports
  • Articles
  • Databases
    • IR-Reflectance
    • Photoluminescence
    • UV-Vis-NIR
  • Contact
  • Disclaimer
Spec4Gem Databases UV-Vis-NIR Euclase - UV-Vis spectra

Euclase - UV-Vis spectra


  • Euclase Index
  • IR-Reflectance
  • Photoluminescence
  • UV-Vis-NIR

  • Light-greenish-blue euclase – (Brazil)
  • Blue euclase – 0.22 ct – Colombia
  • Colorless euclase - 6.15 ct crystal - Brazil
  • Light-greenish-blue euclase – (Brazil)


    uvvis  euclase -  light-greenish-blue  (Brazil)
    Cr3+ spectrum with OH vibrationnal overtones at 980 nm

    Blue euclase – 0.22 ct – Colombia


    uvvis  euclase 022  blue  Colombia
    Cr3+ spectrum, Fe3+-Fe2+ IVCT is not observed although the stone color is deep blue

    Colorless euclase - 6.15 ct crystal - Brazil


    No spectrum
    ©2015-2025 Spec4Gem