Database of luminescent Minerals


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 ,

Daylight Picture


TUGTUPITE
Ilimaussaq Complex, Greenland;
Courtesy MinerShop.com

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 Weak
Short Waves (254 nm): Bluish White Weak
 

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(*):


(*)Data are not exhaustive and are limited to the most important localities for fluorescence


Bibliographical Reference for luminescence:



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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A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.

 


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