Database of luminescent Minerals

REMONDITE-(Ce)

Chemical Formula: Na₃(Ce,La,Ca,Na,Sr)₃(CO₃)₅

Familly: Carbonates

Status: IMA-A

Crystal System: Monoclinic

Mineral for Display: No

Luminescence:

Phosphorescence (in the common meaning of the term) seen by naked eye:

Ténébrescence: OUI

Comments:

Specimen not analyzed. should be strictly speaking labeled burbankite group (in the sense of Horvath – Lapis, Rivista 2000). Other possibilities for not analysed remondite(Ce) from MSH are petersenite-(Ce) and calcioburbankite. (Burbankite proper is not found in pegmatites.) ( Modris Baum on mindat)

Prismatic crystals of Remondite-(Ce) are slightly greenish and are apatite-like under lamp lighting. At day light they are slightly pinkish. This is typical scheme of dichroism for minerals, containing Ce3+ ion in absence of other chromophores. (Pavel Kartashov on mindat)

The remondite-(Ce) has strong REE absorption lines in the red/orange which helps distinguish it from elpidite found in the same environment. The lines are actually due to Nd – an indirect indicator for Ce.

Sometimes, well-formed xls are similar to (calcio)burbankite in form. ( Modris Baum on mindat)

Main Activator(s) and spectrum:

Most Common Activator: Nd³⁺

Comments on activators and spectra:

Laser-induced photoluminescence was studied for burbankite group mineralshexagonal burbankite, calcioburbankite, khanneshite and monoclinic remondite-(Ce), remondite-(La), petersenite-(Ce), as well as for orthorhombic carbocemaite and strontianite from carbonatites and hydrothennalites of alkaline complexes from various regions of the world.

Best Locality for luminescence(*):

• Poudrette quarry (Demix or Uni-Mix quarry  or MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;

(*)Data are not exhaustive and are limited to the most important localities for fluorescence

Bibliographical Reference for luminescence:

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

Luminescence Reference on internet:

• Alkali-Nuts
• Manuel Robbins

Mineralogical Reference on internet:

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

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

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