Database of luminescent Minerals


Chemical Formula: Na2[Al2Si3O10] 2H2O

Familly: Silicates


Crystal System: Orthorhombic

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Greenish white Weak
Mid waves (320 nm):      Green Medium
Short Waves (254 nm):      Green StrongRarely
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(*):

(*)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.
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