Database of luminescent Minerals


Chemical Formula: Na4Al3Si9O24Cl

Familly: Silicates

Status: IMA-GP

Crystal System: Tetragonal

Mineral for Display: No

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


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Yellow
Short Waves (254 nm):      Orange
Other colors SW:          
Orange Red , Red ,

Phosphorescence (in the common meaning of the term) seen by naked eye:

No Data


Mineral of the group SCAPOLITE ( see also MEIONITE).
Marialite and meionite are found as masses or blocky crystals in a number of localities in the Grenville marble of Quebec and ontario (Canada). Sometimes (opaque white crystals from Otter Lake, Quebec) fluo red SW (activator: Fe) and white LW.

Main Activator(s) and spectrum:

Most Common Activator: Mn2+

Other activators:            S2- , Fe3+ , Eu2+ , O-2 ,

Peaks in the spectrum (nm):

(O2)- replacing Cl- (?) : weak band around 500nm
(S2)- replacing Cl- (?) : another weak band around 600nm 
Mn2+  replacing Ca2+ (?) : peak at 700nm
Fe3+ replacing Al3+ : side band around 750nm 

No spectrum for the moment

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:

Search on Internet:

  Search for images on 'Google Image'

  Search for documents in English on Google

  Search for documents in any languages on Google

  Search on Wikipédia


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.


Quick search by fluorescent mineral name: