Chemical Formula: (K,Na,Mg0,5,Ca0,5)6 [Al6Si30O72] 18H2O
Mineral for Display: No
|Long Waves (365nm): || Bluish White ||Short Waves (254 nm): || Bluish White |
Phosphorescence (in the common meaning of the term) seen by naked eye:
|Long Wave (365nm): ||Bluish White ||Very Strong||Short Waves (254 nm): ||Bluish White |
Fluorescence intensity strongly different from sample to sample;
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Agoura Hills, Los Angeles Co, California, USA (bright blue SW + strong blue long lasting phospho);
- Kamloops Lake, British Columbia, Canada (bright blue SW+LW or yellowish white LW+SW);
(*)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 ,
Mineralogical Reference on internet:
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