ZIPPEITE
Chemical Formula: K (UO2)2(SO4)(OH)3 H2O
Familly: Sulfates
Status: IMA-A
Crystal System: Monoclinic
Mineral for Display: No
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Green | Strong | | Short Waves (254 nm): | Green | Strong | | | | | |
Phosphorescence (in the common meaning of the term) seen by naked eye:
No phosphorescence seen by naked eye whatever the type of UV
Comments:
Synthetic Cobalt and Nickel Zippeite both fluoresce.
Main Activator(s) and spectrum:
Most Common Activator: (UO2)2+ (Uranyl ion) intrinsic
Peaks in the spectrum (nm):
505, 527, 551, 577
Col. G.Barmarin; Photo: G. Barmarin
...
To the spectrum gallery (2 spectra in the gallery)
Comments on activators and spectra:
Lifetime: 3μs @ 540nm;
Best Locality for luminescence(*):
- Sec. 35 mine, Grants, New Mexico, USA;
- Green River, Emery county, Utah, USA;
(*)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 Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
- Uranium minerals Website: http://www.uraniumminerals.com ,
- Introduction to radioactive minerals, Robert Lauf, Schiffer Publishing, 2008, ISBN 978-0-7643-2912-8 ,
Luminescence Reference on internet:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Zippeite
http://webmineral.com/data/Zippeite.shtml
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