Database of luminescent minerals 

BECQUERELITE

Mineral NOT FLUORESCENT but sometimes cited in luminescence literature

DOUBTFUL FLUORESCENCE but sometimes cited in luminescence literature

Chemical formula: Ca(UO₂)₆O₄(OH)₆ 8H₂O

Family: Oxides and hydroxides

Status: IMA-GP

Display mineral: NON

Luminescence:

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

Comments:

To be checked;
Sources diverge for luminescence. Usually cited as non-fluorescent at room temperature in the litterature.
Spectra in Liquid Nitrogen (Gorobets): 18550 cm-1, 17920 cm-1, 17390 cm-1 ;

Activator(s) and spectrum:

Activator(s): (UO₂)²⁺ (ion Uranyle) intrinsèque ,

Peaks in the spectrum (nm):

518.9, 535.6, 553.4, 578.9 (In liquid Nitrogen)

No spectrum yet

Best localities for fluorescence (*):

• Shinkolobwe mine, Tantara, Shaba, Dem. Repub. Congo;

(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence

Bibliographic reference for luminescence:

• The Henkel Glossary of Fluorescent Minerals, Dr. Gerhard Henkel, Published by the FMS, 1989 ,
• Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
• Uranium minerals Website: http://www.uraniumminerals.com ,

Mineralogical reference on the Internet:

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

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

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