Chemical Formula: Cs(Sb+3,Na)(Ta,Nb)2(O,OH,F)7
Mineral for Display: No
|Long Waves (365nm): || Orangy yellow ||Short Waves (254 nm): || Orangy yellow |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Associated with simpsonite (fluorescing blue-white) in a granite pegmatite.
New name for cesstibtantite: hydroxykenomicrolite.
Main Activator(s) and spectrum:
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
Peaks in the spectrum (nm):
UO22+ : 500-700nm
No spectrum for the moment
Best Locality for luminescence(*):
- Kola Peninsula, Russia;
- Tanco Mine (Bernic Lake Mine), Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada ;
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical 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 ,
Mineralogical Reference on internet:
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