Database of luminescent Minerals


Chemical Formula: Na4AlBeSi4O12Cl

Familly: Silicates

Status: IMA-GP

Mineral for Display: Yes

Associated names (luminescent varieties, discredited names, synonymes etc.):  tugtulite


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

Ilimaussaq Complex, Greenland;

Long Waves Picture (365nm)

Ilimaussaq Complex, Greenland;

Mid Waves Pictures (330nm)

Ilimaussaq Complex, Greenland;

Short Waves Pictures (254nm)

Ilimaussaq Complex, Greenland;


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-

Peaks in the spectrum (nm):

S2-  : band with ondulation peaking at 600-680nm

Fe3+repl. Si4+ : 680nm

Col. G. Barmarin; Spectre: G. Barmarin


  To the spectrum gallery (1 spectra in the gallery)

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:

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Note: While all due attention has been paid to the implementation of the database, it may contain errors and/or accidental omissions. By nature, the database will always be incomplete because science always evolves according to new analysis.
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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