Chemical Formula:See SPODUMENE
Crystal System: Monoclinic
Mineral for Display: No
|Long Waves (365nm): || Orange Red ||Short Waves (254 nm): || Orange Red |
|Other colors LW: || |
Orange , Violet red , Salmon pink ,
|Other colors SW: || |
Violet red , Salmon pink ,
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Most Common Activator: Mn2+
Other activators: Cr3+ ,
No spectrum for the moment
Comments on activators and spectra:
In green hiddenite crystals Cr3+ emission is dominant at room temperature where the R-lines are superimposed on a broad-band emission. (Source: Luminescence spectroscopy of Cr3+ and Mn2+ in spodumene (LiAlSi2O6), WALKER G. see below).
Best Locality for luminescence(*):
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
- The Henkel Glossary of Fluorescent Minerals, Dr. Gerhard Henkel, Published by the FMS, 1989 ,
- Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,
Luminescence Reference on internet:
- Luminescence spectroscopy of Cr3+ and Mn2+ in spodumene (LiAlSi2O6), WALKER G., EL JAER A., SHERLOCK R., GLYNN T. J., CZAJA M., MAZURAK Z., Journal of luminescence, 1997, vol. 72-74, pp. 278-280
Mineralogical Reference on internet:
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