Chemical Formula: Na Na2 (Fe4 +2 Fe+3) Si8 O22 (OH)2
Status: IMA-A (GP)
Crystal System: Monoclinic
Mineral for Display: No
|Long Waves (365nm): || Orange ||Strong|
Phosphorescence (in the common meaning of the term) seen by naked eye:
Wave band not specified
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Ilimaussaq complex, Narsaq, Kitaa (West Greenland) Province, Greenland;
(*)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 ,
- The World of Fluorescent Minerals, Stuart Schneider, Schiffer Publishing, 2006, ISBN 0-7643-2544-2 ,
- Minershop.com ,
Mineralogical Reference on internet:
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