UVITE
Chemical formula: (Ca,Na)(Mg,Fe+2)3Al5Mg(BO3)3Si6O18(OH,F)4
Family: Silicates
Status: IMA-GP
Crystal system : Rhomboedric
Display mineral: NON
Luminescence:
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Longwave UV (365nm) colors: | Yellow ,
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Shortwave UV (254nm) colors: | Orangy yellow ,
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Phosphorescence (in the common sense of the term) observable with the naked eye:
No data
Comments:
Bush Farm, Richville: uvite fl. yellow-orange SW associated with Diopside fl. bluish-white SW;
Activator(s) and spectrum:
Activator(s): TiO6, Cr3+, Ti3+,
Peaks in the spectrum (nm):
Cr3+ repl. Al3+ : 695nm
Ti3+ repl. Al3+? : 720nm
TiOn (Ti4+ - Si4+ ) : 530-550nm
No spectrum yet
Best localities for fluorescence (*):
- Franklin marble, Franklin, New Jersey, USA;
- Pomba Pit, Serra das Éguas, Brumado, Bahia Brazil (±1994, weak SW);
- Bradu Valley, Pakistan;
- Bush Farm, Richville, St. Lawrence Co, NY, USA;
(*)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 ,
- 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 ,
Mineralogical reference on the Internet:
http://www.mindat.org/show.php?name=Uvite
http://webmineral.com/data/Uvite.shtml
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