BARATOVITE
Chemical Formula: KCa7(Ti,Zr)2Li3Si12O36(OH,F)2
Familly: Silicates
Status: IMA-A
Crystal System: Monoclinic
Mineral for Display: No
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Short Waves (254 nm): | Bluish White | Strong | Always | | | | |
Daylight Picture
BARATOVITE, Tadzhikistan, Russia;
Col. G.Barmarin; Photo: G. Barmarin
Short Waves Pictures (254nm)
BARATOVITE, Tadzhikistan, Russia; UVSW;
Col. G.Barmarin; Photo: G. Barmarin
Phosphorescence (in the common meaning of the term) seen by naked eye:
No Data
Comments:
Note: Some mineralogists consider baratovite to be OH-dominant, which would make katayamalite the same species, with the name baratovite having priority (see Mindat.org).
See KATAYAMALITE
Main Activator(s) and spectrum:
Most Common Activator: Ce3+
Other activators: Sm3+ , Dy3+ ,
Peaks in the spectrum (nm):
Ce3+ repl. Ca2+ : 390
Sm3+ repl. Ca2+ : 600, 645
Dy3+ repl. Ca2+ : 490, 580
Col. G. Barmarin; Spectre: G. Barmarin
Comments on activators and spectra:
https://www.researchgate.net/publication/226256619_Photoluminescence_of_baratovite_and_katayamalite )">
Large band centered at 406nm? (see https://www.researchgate.net/publication/226256619_Photoluminescence_of_baratovite_and_katayamalite )
Best Locality for luminescence(*):
- Dara-I-Poiz Massif, Alayskiy Range, Tien Shan, region of Republican Subordination, Tajikistan (sometime associated with baratovite blue-white SW);
- Khodzhaachkan Massif, Sokh Valley, Alai Range (Alay Range), Osh Oblast, Kyrgyzstan (Bluish-white SW, associated with miserite, aegirine, albite);
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
- Fluorescence: Gems and Minerals Under Ultraviolet Light, Manuel Robbins, 1994, Geoscience Press, ISBN 0-945005-13-X ,
- The World of Fluorescent Minerals, Stuart Schneider, Schiffer Publishing, 2006, ISBN 0-7643-2544-2 ,
- Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
Luminescence Reference on internet:
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Baratovite
http://webmineral.com/data/Baratovite.shtml
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