SCHOEPITE
DOUBTFUL FLUORESCENCE but sometimes cited in luminescence literature
Chemical formula: [(UO2)8O2(OH)12](H2O)12
Family: Oxides and hydroxides
Status: IMA-GP
Display mineral: NON
Associated names (luminescent varieties, discredited names, synonyms, etc.): epi-ianthinite,
Luminescence:
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Longwave UV (365nm) colors: | Green ,
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| Intensity LW:Weak
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Shortwave UV (254nm) colors: | Green ,
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| Intensity SW:Weak
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Phosphorescence (in the common sense of the term) observable with the naked eye:
No phosphorescence visible to the naked eye under any type of UV
Comments:
Not luminescent at room temperature for Gorobets but most other sources give it fluorescent SW and LW pale green. Spectra in Liquid Nitrogen given by Gorobets (17500 cm-1, 16800 cm-1 and 16100 cm-1)
Activator(s) and spectrum:
Activator(s): (UO2)2+ (ion Uranyle) intrinsèque ,
No spectrum yet
Best localities for fluorescence (*):
- Musonoi Mine, Kolwezi, Western area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre);
- Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Central area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre);
- San Rafael Swell, eastern Utah, USA;
(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence
Bibliographic 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 ,
- Introduction to radioactive minerals, Robert Lauf, Schiffer Publishing, 2008, ISBN 978-0-7643-2912-8 ,
- Handbook of mineralogy, John W. Anthony, Richard A. Bideaux, Kenneth W. Bladh, and Monte C. Nichols, and published by Mineral Da ,
Mineralogical reference on the Internet:
http://www.mindat.org/show.php?name=Schoepite
http://webmineral.com/data/Schoepite.shtml
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