VILLIAUMITE
Chemical Formula: NaF
Familly: Halides
Status: IMA-GP
Crystal System: Isometric
Mineral for Display: No
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Red | Medium | | Mid waves (320 nm): | Orange Red | Medium | | Short Waves (254 nm): | Red | Weak | | | | | |
Other colors LW: | Orangy yellow , Orange Red , |
Other colors MW: | Orange Red , Red , |
Other colors SW: | Orangy yellow , Orange Red , Red , |
Phosphorescence (in the common meaning of the term) seen by naked eye:
No Data
Main Activator(s) and spectrum:
No data
Best Locality for luminescence(*):
- Point of Rocks, Colfax County, New Mexico, USA (fluo orange);
- Khibina Massif, Kola Peninsula, Russia (fluo orange);
- Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;
- Los Archipelago, Guinea (fluo red);
- Ilimaussaq complex, Kvanefjeld, Narsaq, Kitaa (West Greenland) Province, Greenland;
- Aris Quarries, Aris, Windhoek District, Khomas Region, Namibia;
(*)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 ,
- The World of Fluorescent Minerals, Stuart Schneider, Schiffer Publishing, 2006, ISBN 0-7643-2544-2 ,
Luminescence Reference on internet:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Villiaumite
http://webmineral.com/data/Villiaumite.shtml
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