Chemical Formula: Al2SO4(OH)4 7H2O
Crystal System: Monoclinic
Mineral for Display: No
Associated names (luminescent varieties, discredited names, synonymes etc.): websterite,
|Long Waves (365nm): || White ||Short Waves (254 nm): || White |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- New Haven, Sussex, England;
- Saxony, Germany;
(*)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:
Mineralogical Reference on internet:
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