DOUBTFULL FLUORESCENCE but cited by some authors
Chemical Formula: Fe2+3As4+3(O,OH)9
Familly: Oxides and hydroxides
Mineral for Display: No
|Short Waves (254 nm): || Yellow |
Phosphorescence (in the common meaning of the term) seen by naked eye:
Doubtfull because of trivalent iron as an essential element of the structure of the mineral.
Main Activator(s) and spectrum:
Best Locality for luminescence(*):
- Karibib pegmatite, Namibia;
(*)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 ,
Mineralogical Reference on internet:
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