Chemical Formula:See THORITE (Th,U)SiO4
Crystal System: Tetragonal
Mineral for Display: No
|Long Waves (365nm): || Yellowish Green ||Mid waves (320 nm): || Yellowish Green ||Short Waves (254 nm): || Yellowish Green |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Main Activator(s) and spectrum:
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
No spectrum for the moment
Best Locality for luminescence(*):
- Laajamaa pegmatite, Pello, Lapland, Finland;
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
Luminescence Reference on internet:
Mineralogical Reference on internet:
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