Database of luminescent Minerals


DOUBTFULL FLUORESCENCE but cited by some authors

Chemical Formula: [(UO2)8O2(OH)12](H2O)12

Familly: Oxides and hydroxides

Status: IMA-GP

Mineral for Display: No

Associated names (luminescent varieties, discredited names, synonymes etc.):  epi-ianthinite


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Green Weak
Short Waves (254 nm):      Green Weak

Phosphorescence (in the common meaning of the term) seen by naked eye:

No phosphorescence seen by naked eye whatever the type of UV


Not luminescent at room temperature for Gorobets but most other sources give it fluorescent SW and LW pale green. Spectra in Liquid Nitrogen given by Gorobets (17500 cm-1, 16800 cm-1 and 16100 cm-1)

Main Activator(s) and spectrum:

Most Common Activator: (UO2)2+ (Uranyl ion) intrinsic

No spectrum for the moment

Best Locality for luminescence(*):

(*)Data are not exhaustive and are limited to the most important localities for fluorescence

Bibliographical Reference for luminescence:

Mineralogical Reference on internet:

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Note: While all due attention has been paid to the implementation of the database, it may contain errors and/or accidental omissions. By nature, the database will always be incomplete because science always evolves according to new analysis.
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.


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