ELPIDITE
Chemical Formula: Na2ZrSi6O15 3H2O
Familly: Silicates
Status: IMA-GP
Crystal System: Orthorhombic
Mineral for Display: No
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Yellowish Green | | | Mid waves (320 nm): | Yellowish Green | | | Short Waves (254 nm): | Yellowish Green | | | | | | |
Other colors LW: | Greenish , Greenish white , |
Other colors MW: | Greenish , Greenish white , |
Other colors SW: | White , Yellowish White , Pale Yellow , Greenish , Greenish white , |
Daylight Picture
ELPIDITE,
Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author
Short Waves Pictures (254nm)
ELPIDITE under UVSW ,
Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author
Phosphorescence (in the common meaning of the term) seen by naked eye:
No Data
Main Activator(s) and spectrum:
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
Peaks in the spectrum (nm):
UO22+ : 523, 545, 568, 592nm
No spectrum for the moment
Best Locality for luminescence(*):
- Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;
- Ilimaussaq complex, Kvanefjeld, Narsaq, Kitaa (West Greenland) Province, Greenland;
- Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia;
- Khibiny Massif, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
(*)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 ,
- Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
Luminescence Reference on internet:
- MONT-SAINT-HILAIRE, History, Geology, Mineralogy, Laszlo HORVATH, The Canadian Mineralogist, Special Publication 14, 2019
Images:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Elpidite
http://webmineral.com/data/Elpidite.shtml
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