UVAROVITE
Chemical Formula: Ca3Cr2(SiO4)3
Familly: Silicates
Status: IMA-GP
Crystal System: Isometric
Mineral for Display: No
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Red | | | | | | |
Other colors SW: | Greenish , |
Phosphorescence (in the common meaning of the term) seen by naked eye:
No Data
Main Activator(s) and spectrum:
Most Common Activator: Cr3+
Other activators: TiO6 ,
Peaks in the spectrum (nm):
Cr3+ "R-Lines" replacing AlVI3+ : 697, 702nm
TiO6 replacing AlO6 : large band peaking at 520nm (Gorobets)
No spectrum for the moment
Best Locality for luminescence(*):
- Nijie-Tagiskoyie, Urals, Russia (fluo green);
- Transvaal, South Africa (fluo red);
(*)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:
http://www.mindat.org/show.php?name=Uvarovite
http://webmineral.com/data/Uvarovite.shtml
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