Database of luminescent minerals 

SELLAITE

Chemical formula: MgF₂

Family: Halides

Status: IMA-GP

Display mineral: NON

Luminescence:

Daylight picture

Sellaite, Les Adets, France;
Col. G.Barmarin; Photo: G. Barmarin

Longwave (365nm) picture

Sellaite UVLW, Les Adets, France;
Col. G.Barmarin; Photo: G. Barmarin

Shortwave (254nm) picture

Sellaite UVSW, Les Adets, France;
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

Thermoluminescence: OUI

Comments:

Sellaite should be thermoluminescent (after De Ment)

Activator(s) and spectrum:

Activator(s): Mn²⁺ ,

No spectrum yet

Comments on spectrum and activators:

Mn²⁺ repl. Mg²⁺

Best localities for fluorescence (*):

• Les Adets, France (yellow fluorescence);
• Clara Mine, Oberwolfach, Black Forest Region, Germany (blue-white fluo);
• Pedra Preta Quarry, Brumado, Bahia, Brazil (Magenta-pink SW);

(*)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 ,
• Fluorescence: Gems and Minerals Under Ultraviolet Light, Manuel Robbins, 1994, Geoscience Press, ISBN 0-945005-13-X ,
• Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
• Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,

Mineralogical reference on the Internet:

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

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

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