TUGTUPITE
Chemical Formula: Na4AlBeSi4O12Cl
Familly: Silicates
Status: IMA-GP
Crystal System: Tetragonal
Mineral for Display: Yes
Associated names (luminescent varieties, discredited names, synonymes etc.):
tugtulite,
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Orange | | | Mid waves (320 nm): | Pinkish White | | | Short Waves (254 nm): | Orange Red | | | | | | |
Other colors LW: | Pinkish White , Orange Red , Red , Salmon pink , |
Other colors MW: | Orange , Pink , |
Other colors SW: | Yellowish White , Pinkish White , Orange , Red , |
Long Waves Picture (365nm)

TUGTUPITE, UVLW
Ilimaussaq Complex, Greenland;
Courtesy MinerShop.com
Mid Waves Pictures (330nm)

TUGTUPITE , UVMW
Ilimaussaq Complex, Greenland;
Courtesy MinerShop.com
Short Waves Pictures (254nm)

TUGTUPITE , UVSW
Ilimaussaq Complex, Greenland;
Courtesy MinerShop.com
Phosphorescence (in the common meaning of the term) seen by naked eye:
UV Type |
Color |
Intensity |
Observation Frequency |
Long Wave (365nm): | Pinkish White | Medium | |
Mid Waves (320 nm): | Bluish White | Medium | | Short Waves (254 nm): | Bluish White | Medium | |
Ténébrescence: OUI

Main Activator(s) and spectrum:
Most Common Activator: S2-
Other activators: Fe3+ , Eu2+ , Ce3+ , Mn2+ ,
Peaks in the spectrum (nm):
S2- : band with weak vibrational structure peaking at 600-680nm
Fe3+repl. Si4+ : 570 - 680nm

Col. G. Barmarin; Spectre: G. Barmarin

...
To the spectrum gallery (1 spectra in the gallery)
Comments on activators and spectra:
It is generally accepted that the yellow-orange emission of tugtupite with weak vibrational structure at 300 K, which becomes more prominent at low temperatures, is connected to a S2- luminescence center (Povarennykh et al. 1971).
Laser-induced time-resolved technique enables Gaft to detect Eu2+ (Band at 430nm) and Ce3+ (Band at 360nm), two different Mn2+ (Band at 495 & 512nm), Fe3+ (Band at 670nm) and S2- (Band at 603nm) emission centers.
Best Locality for luminescence(*):
- Ilimaussaq complex, Kvanefjeld, Narsaq, Kitaa (West Greenland) Province, Greenland;
- Ilimaussaq complex, Taseq slopes, Narsaq, Kitaa (West Greenland) Province, Greenland;
- Ilimaussaq complex, Kangerlassaq, Narsaq, Kitaa (West Greenland) Province, Greenland;
- Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;
- Shkatulka pegmatite, Umbozero mine, Alluaiv Mt, Lovozersky District, Murmansk Oblast, 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 ,
- Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
- Mt St Hilaire Website: http://www.saint-hilaire.ca ,
- Minershop.com ,
Luminescence Reference on internet:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Tugtupite
http://webmineral.com/data/Tugtupite.shtml
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