Database of luminescent Minerals


Chemical Formula: (Ca,RRE)CaNa2Be2Si4O12(F,O)2

Familly: Silicates

Status: IMA-GP

Crystal System: Orthorhombic

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Violet Pink Strong
Mid waves (320 nm):      Violet Pink Very Strong
Short Waves (254 nm):      Pink Strong
Other colors LW:          
Blue , Purple pink ,
Other colors MW:     
Purple pink ,
Other colors SW:          
Blue , Purple pink ,

Daylight Picture

LEUCOPHANITE, Saga, Tvedalen, Norway;

Col. G.Barmarin; Photo: G. Barmarin

Long Waves Picture (365nm)

LEUCOPHANITE, Saga, Tvedalen, Norway;
Col. G.Barmarin; Photo: G. Barmarin

Short Waves Pictures (254nm)

LEUCOPHANITE, Saga, Tvedalen, Norway;
Col. G.Barmarin; Photo: G. Barmarin


Galerie de photos:


     To the gallery (4 images in the gallery)

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

UV Type Color Intensity Observation Frequency
Long Wave (365nm): Bluish
Short Waves (254 nm): Bluish

Triboluminescence: Yes

Thermoluminescence: Yes


To compare with meliphanite.

Main Activator(s) and spectrum:

Most Common Activator: Ce3+

Other activators:            Eu2+ , Sm3+ , Dy3+ , Tb3+ , Mn2+ , Nd3+ ,

Peaks in the spectrum (nm):

 Ce3+ repl. Ca2+ : 375, 411, 450nm 
 Eu2+ : 466-470nm 
 Tb3+ : 546nm
 Sm3+: 607nm 
 Dy3+: 475, 488, 576nm
 Nd3+: 885, 1060nm 
 Mn2+: 610nm

Spectrum: Michael Gaft, Petah Tikva, Israel. Plot: Institute of Mineralogy, University of Vienna, Austria, with permission of the authors.


  To the spectrum gallery (1 spectra in the gallery)

Comments on activators and spectra:

Activators: a combinaison of RE elements - for exemple Ce3+ substituting to Ca (blue luminescence) and Mn (red luminescence) giving the magenta color (an orange flash typical of Mn(?) is seen on some samples).
Activators: Ce 3+, Eu 2+, Sm 3+, Dy 3+, Tb 3+, Nd 3+, Mn2+ substituting to Ca2+ (Gorobets in Gaft);

Cathodoluminescence: intense light-blue.

The application of multiple forms of excitation (Friis et al. 2011) revealed that the UV-Blue emission in leucophanite and meliphanite consists of more than one emission center and is therefore more complex than previously thought. The most likely centers are defects related to the structure, e.g. in connection with the tetrahedral sites, and a Ce3+ centre. The difference in Na/Ca ratio between the two minerals make it possible for REE to substitute into two sites in meliphanite contrary, to just one in leucophanite. (Gaft)

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: