Chemical Formula: NaBe4SbO7
Crystal System: Hexagonal
Mineral for Display: No
|Long Waves (365nm): || Red ||Short Waves (254 nm): || Blue |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Most Common Activator:
Peaks in the spectrum (nm):
No spectrum for the moment
Best Locality for luminescence(*):
- Langban, Filipstad, Varmland Province, Sweden (SW blue + calcite/dolomite SW red-orange);
(*)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 ,
- Fluorescence: Gems and Minerals Under Ultraviolet Light, Manuel Robbins, 1994, Geoscience Press, ISBN 0-945005-13-X ,
Luminescence Reference on internet:
- Fluorescent Minerals of Langban, Richard Loyens, UV-Waves January/February 1996.
- Der Aufschluss, Vol.48, n°2 March/April 1997 Langban minerals by Fritz Blatter;
- Laser-induced time-resolved luminescence of natural margarosanite Pb(Ca,Mn)2Si3O9, swedenborgite NaBe4SbO7 and walstromite BaCa2Si3O9, Michael Gaft, H. Yeates, Lev Nagli, European Journal of Mineralogy
Mineralogical Reference on internet:
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