Chemical Formula: (Ca0,5,Na,K)9[Al9Si27O72] 24H2O
Status: IMA-A (GP)
Mineral for Display: No
|Long Waves (365nm): || Greenish Blue ||Short Waves (254 nm): || Red |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Paterson, Passaic Co., New Jersey, USA (yellow-white LW);
- Green Mountain, Golden, Golden District, Jefferson Co., Colorado, USA (blue-white LW);
- Jalgaon District, Maharashtra, India (very weak, SW+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 ,
Mineralogical Reference on internet:
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