Database of luminescent Minerals


Chemical Formula: Pb(Ca,Mn+2)2Si3O9

Familly: Silicates

Status: IMA-GP

Crystal System: Triclinic

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Violet red
Mid waves (320 nm):      Red Strong
Short Waves (254 nm):      Bluish White Strong
Other colors MW:               
Orange , Violet red , Violet Pink ,
Other colors SW:                              
Violet Pink , Greenish Blue , Blue , Violet , Violet blue , sky-blue ,

Daylight Picture

MARGAROSANITE, Franklin, New Jersey, USA
Photo and Copyright: James Horste
Used with permission of the author.

Short Waves Pictures (254nm)

Photo and Copyright: James Horste
Used with permission of the author.


Galerie de photos:


     To the gallery (2 images in the gallery)

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

No Data


In Jakobsberg, Sweden, wolastonite and margarosanite replace barysilite (see picture by Kjell Gatedal in bibliography)

Main Activator(s) and spectrum:

Most Common Activator: Mn2+

Other activators:            Pb2+ , Ce3+ , Nd3+ ,

Peaks in the spectrum (nm):

Pb2+ : broad bands at 325nm (t= 1,2microsec.) and 450nm (t= 10,6microsec.)

Mn2+ : broad band at 635nm (t= 540microsec.) (exc. 266nm)

Mn2+ : broad band at 635nm (t= 1,2ms) (exc. 355nm)

Mn2+ : very large band at 640nm with peak at 630nm (exc. 532nm)

Nd3+ : 860, 876, 895nm (exc. 780nm)

No spectrum for the moment

Comments on activators and spectra:

Laser-induced time-resolved technique enables to detect two types of Pb2+, two types of Mn2+ and Ce3+ emission centers (Gaft et al. 2013a).

Excitation by CW laser with 532 and 780 nm revealed narrow luminescence lines possibly belonging to Nd3+ and broad luminescence band of Mn2+ 

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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