NATROLITE

 


Chemical formula: Na2[Al2Si3O10] 2H2O

Family: Silicates

Status: IMA-A

Crystal system : Orthorhombic

Display mineral: NON

 

Luminescence:

Longwave UV (365nm) colors:

              


Greenish white , White , Green ,

Intensity LW:Weak

Midwave UV (320nm) colors:

         


Green , Yellowish Green ,

Intensity MW:Medium

Shortwave UV (254nm) colors:

                   


Green , White , Yellowish Green , Greenish white ,

Intensity SW:Strong

Frequency SW:Rarely


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,

Shortwave (254nm) picture


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,

 

Pictures Galery:

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  Go to the galery (14 pictures)

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Phosphorescence (in the common sense of the term) observable with the naked eye:

No phosphorescence visible to the naked eye under any type of UV

Activator(s) and spectrum:

Activator(s): (UO2)2+ (ion Uranyle) en impureté,

Peaks in the spectrum (nm):

(UO2)2+ : 488, 504 , 523-524, 545-546, 566, 593-594nm


Col. G.Barmarin; Photo: G. Barmarin

Spectrum Galery:

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  Go to the galery (2 spectra)

Comments on spectrum and activators:

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 localities for fluorescence (*):

(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence

Bibliographic reference for luminescence:

Reference for luminescence on the Internet:

  • MONT-SAINT-HILAIRE, History, Geology, Mineralogy, Laszlo HORVATH, The Canadian Mineralogist, Special Publication 14, 2019

Mineralogical reference on the Internet:

  http://www.mindat.org/show.php?name=Natrolite

  http://webmineral.com/data/Natrolite.shtml

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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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