Database of luminescent minerals 

BASTNAESITE-(Ce)

Chemical formula: (Ce,La)(CO₃)F

Family: Carbonates

Status: IMA-GP

Crystal system : Hexagonal

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): Sm³⁺, Eu³⁺,  Dy³⁺,  Tb³⁺,  

No spectrum yet

Comments on spectrum and activators:

With unfiltered SWUV - dull green fluorescence (not true fluorescence - optical effect created by the selective absorption of yellow, blue and violet color by the Nd letting the green color of the lamp alone to be reflected).

Photoluminescence studies of bastnasite confirmed the presence of at least four trivalent rare earths, such as Sm, Eu, Dy and Tb in trace quantities.

The rare earth ions are situated at distorted sites in the system surrounded by defect centers (Mohapatra et al. 2014). (Gaft)

Best localities for fluorescence (*):

• Zagi Mountain, Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa, Pakistan ;

(*)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 ,
• Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

  http://www.mindat.org/show.php?name=Bastnaesite-(ce)

  http://webmineral.com/data/Bastnaesite-(ce).shtml

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