Database of luminescent Minerals
francolite
Chemical Formula:See CARBONATE-FLUORAPATITE
Status: NR
Mineral for Display: No
Luminescence:
| UV Type | Main color | Intensity | Observation Frequency |
|---|---|---|---|
| Long Waves (365nm): | Bluish White | Very weak | Short Waves (254 nm): | Green | Weak |
Daylight Picture
Francolite, Kovdor Mine, Kola peninsula, Russia;
Col. G.Barmarin; Photo: G. Barmarin
Long Waves Picture (365nm)
Francolite, Kovdor Mine, Kola peninsula, Russia;
UVLW
Col. G.Barmarin; Photo: G. Barmarin
Short Waves Pictures (254nm)
Francolite, Kovdor Mine, Kola peninsula, Russia;
UVSW
Col. G.Barmarin; Photo: G. Barmarin
Phosphorescence (in the common meaning of the term) seen by naked eye:
No Data
Main Activator(s) and spectrum:
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
Peaks in the spectrum (nm):
400 nm, 463 nm, 490 nm, 527 nm,563 nm UO22+ : 500, 519, 542, 562nm (sample in collection)
Col. G. Barmarin; Spectre: G. Barmarin
Best Locality for luminescence(*):
(*)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 ,
- Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Francolite
http://webmineral.com/data/Francolite.shtml
Search on Internet:
Search for images on 'Google Image'
Search for documents in English on Google
Search for documents in any languages on Google
A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.