Chemical Formula: (Ba,Sr)2(Al4Si12O32) 10H2O
Crystal System: Monoclinic
Mineral for Display: No
|Long Waves (365nm): || Yellowish White ||Short Waves (254 nm): || Yellowish White |
|Other colors LW: || |
Bluish White ,
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Whitesmith Mine, Strontian, North West Highlands (formerly Argyllshire) , Scotland, UK (strontian-brewsterite, light blue LW);
(*)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 ,
Mineralogical Reference on internet:
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