Database of luminescent Minerals
NATROLITE
Chemical Formula: Na2[Al2Si3O10] 2H2O
Familly: Silicates
Status:
Crystal System: Orthorhombic
Mineral for Display: No
Luminescence:
| UV Type | Main color | Intensity | Observation Frequency |
|---|---|---|---|
| Long Waves (365nm): | Greenish white | Weak | Mid waves (320 nm): | Green | Medium | Short Waves (254 nm): | Green | Strong | Rarely |
| Other colors LW: | White , Green , | ||
| Other colors MW: | Yellowish Green , | ||
| Other colors SW: | White , Yellowish Green , Greenish white , | ||
Daylight Picture
NATROLITE, Poudrette Quarry, Mt St Hilaire
Quebec, Canada;
Copyright 2006 S. Schneider,
The World of Fluorescent Minerals
Used with permission of the author,
Short Waves Pictures (254nm)
NATROLITE, Poudrette Quarry, Mt St Hilaire
Quebec, Canada; SW (254 nm)
Copyright 2006 S. Schneider,
The World of Fluorescent Minerals,
Used with permission of the author,
Galerie de photos:
... 
To the gallery (9 images in the gallery)
Phosphorescence (in the common meaning of the term) seen by naked eye:
No phosphorescence seen by naked eye whatever the type of UV
Main Activator(s) and spectrum:
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
Peaks in the spectrum (nm):
(UO2)2+ : 488, 504 , 523-524, 545-546, 566, 593-594nm
Col. G.Barmarin; Photo: G. Barmarin
... 
To the spectrum gallery (1 spectra in the gallery)
Comments on activators and spectra:
Green luminescence due to Uranium in traces (typical spectrum of uranyl). Gunnel (1939) has studied the luminescence of natrolite from Oberschaffhauser, Germany (yellowish-white LW). Probably published in The Mineralogist at this time.
Best Locality for luminescence(*):
- Poudrette Quarry, Mont St Hilaire, Rouville County, Quebec, Canada;
- Ilimaussaq complex, Kvanefjeld, Narsaq, Kitaa (West Greenland) Province, Greenland;
(*)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 ,
- Mt St Hilaire Website: http://www.saint-hilaire.ca ,
- Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,
Luminescence Reference on internet:
- MONT-SAINT-HILAIRE, History, Geology, Mineralogy, Laszlo HORVATH, The Canadian Mineralogist, Special Publication 14, 2019
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Natrolite
http://webmineral.com/data/Natrolite.shtml
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