Database of luminescent Minerals


Chemical Formula: Pb5(PO4)3Cl

Familly: Phosphates, Arseniates, Vanadates

Status: IMA-GP

Crystal System: Hexagonal

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Yellowish
Mid waves (320 nm):      Orangy yellow
Short Waves (254 nm):      Orange
Other colors LW:               
Yellowish White , Dark Orange /Tawn , Tawn ,
Other colors MW:                                        
Yellowish White , Pale Yellow , Yellow , Orangy yellow , Orange , Dark Orange /Tawn , Tawn , Yellowish ,
Other colors SW:                              
Yellowish White , Pale Yellow , Orangy yellow , Dark Orange /Tawn , Tawn , Yellowish ,

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

No Data


Variety: campylite (rounded crystals)

Main Activator(s) and spectrum:

Most Common Activator: Eu3+

Other activators:            Pb2+ , Ce3+ , Sm3+ , Eu3+ , Tb3+ , O-2 , VO43- ,

Peaks in the spectrum (nm):

(VO4)3- : Broad band peaking at 580nm

Ce3+ : 350, 375nm

Eu3+ : 580, 594, 611, 613, 615, 620, 622, 700nm

Sm3+ : 566, 603, 652nm

Nd3+ : 858, 889nm

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

Comments on activators and spectra:

Luminescence centers O2-  (Tarashchan 1978) and evidently (VO4)3- (Gaft 1984) characterize steady-state spectra of pyromorphite.

Laser-induced time-resolved technique enables to detect Ce3+, Eu3+, Sm3+ and Tb3+ emission centers and possibly Pb2+.

Excitation by CW laser with 532 and 780 nm revealed narrow luminescence lines possibly belonging to trivalent REE (Nd, Eu, Sm) and two luminescence bands peaking at 625 and 675 nm (sample from Les Farges, France, unknown activator).

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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