CERUSSITE   (French name: CERUSITE )


Chemical formula: PbCO3

Family: Carbonates

Status: IMA-GP

Crystal system : Orthorhombic

Display mineral: OUI

Associated names (luminescent varieties, discredited names, synonyms, etc.): chrome-cerusite

 

Luminescence:

Longwave UV (365nm) colors:

                        


Yellowish White , Bluish White , Pale Yellow , Yellow , Yellowish ,

Intensity LW:Weak

Frequency LW:Often

Midwave UV (320nm) colors:

                        


Yellow , Bluish White , Yellowish White , Pale Yellow , Yellowish ,

Intensity MW:Medium

Frequency MW:Often

Shortwave UV (254nm) colors:

              


Yellow , Bluish White , Yellowish White ,

Intensity SW:Medium

Frequency SW:Often


Daylight picture


Cerusite, Mibladen, Maroc.
Col. G. Barmarin, Photo: G. Barmarin

Longwave (365nm) picture


Cerusite, Mibladen, Maroc. OL (365nm)
Col. G. Barmarin, Photo: G. Barmarin

 

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

No data

Comments:

Variéty chrome cerussite: SW et LW: Yellowish-White, greenish yellow;

Activator: possibly Ag+ (Gorobets)or Pb2+ (Gaft), accessory Sm3+

Activator(s) and spectrum:

Activator(s): Pb2+, Sm3+,  Eu3+,  Dy3+,  Ag+,  

Peaks in the spectrum (nm):

(?) : large band peaking at 515 nm,

Sm3+  : peaks at 564, 597, 649nm 

Dy3+ : 574, 577nm

Nd3+ : 876, 919nm

Eu3+ : 615, 621, 643, 657, 704nm


Col. G. Barmarin; Spectre: G. Barmarin

Comments on spectrum and activators:

Lifetime: 218μs @475nm;

 

Excitation by CW laser with 532 and 780 nm revealed several luminescence bands and lines. IR lines under 780 nm excitation may be evidently ascribed to Nd3+ and other trivalent REE luminescence present under 532 nm excitation, while the bands origin needs further investigation. (Gaft)

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:

  • Der Aufschluss, Vol.48, n°2 March/April 1997 by Fritz Blatter;
  • Cérusite de Richelle, Belgique
  • MONT-SAINT-HILAIRE, History, Geology, Mineralogy, Laszlo HORVATH, The Canadian Mineralogist, Special Publication 14, 2019

 

Image(s):

 

Mineralogical reference on the Internet:

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

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

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