Database of luminescent minerals 

PROSOPITE

Chemical formula: CaAl₂(F,OH)₈

Family: Halides

Status: IMA-GP

Crystal system : Monoclinic

Display mineral: NON

Luminescence:

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

No data

Activator(s) and spectrum:

Activator(s): Ce³⁺, Cr³⁺,  Sm³⁺,  Eu³⁺,  

Peaks in the spectrum (nm):

Ce³⁺ : 375nm

Cr³⁺ : sharp peak at 617, 656, 699nm (exc. 532nm)

No spectrum yet

Comments on spectrum and activators:

Prosopite was studied by steady-state luminescence spectroscopy and luminescence of trivalent REE, such as Gd, Ce, Dy, and Sm, was found (Gorobets and Rogojine 2001).

Excitation by CW laser with 532 nm revealed narrow luminescence lines possibly belonging to Eu3+, Sm3+ and Cr3+ and luminescence band peaking at 720 nm (Gaft)

Best localities for fluorescence (*):

• Ivigtut Cryolite deposit, Ivittuut, Arsuk Fjord, Sermersooq, Greenland;

(*)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 ,
• Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
• Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

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

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

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