Chemical Formula: (Na,Ca)(Si,Al)408
Mineral for Display: No
|Long Waves (365nm): || Yellow ||Short Waves (254 nm): || Red ||Weak|
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Most Common Activator: Fe3+
Other activators: Pb2+ , Mn2+ ,
Peaks in the spectrum (nm):
Pb2+ : broad band peaking at 296nm
Spectrum: Michael Gaft, Petah Tikva, Israel. Plot: Institute of Mineralogy, University of Vienna, Austria, with permission of the authors.
To the spectrum gallery (2 spectra in the gallery)
Best Locality for luminescence(*):
- Franklin, Franklin Mining District, Sussex Co., New Jersey, USA (yellow LW);
- Mitchell Co., North Carolina, USA (dim brownish-white 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 ,
- Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
Luminescence Reference on internet:
Mineralogical Reference on internet:
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