Database of luminescent Minerals


Chemical Formula: K4(UO2)(CO3)3

Familly: Carbonates

Status: IMA-A

Crystal System: Monoclinic

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Green
Mid waves (320 nm):      Green
Short Waves (254 nm):      Green

Daylight Picture

Agricolaite, Jachymov, Czech Republic;
Photo and Copyright: Pavel Skacha,
Used with permission of the author

Long Waves Picture (365nm)

Agricolaite undes UVLW, Jachymov, Czech Republic;
Photo: G. Barmarin, Col: Luc Vandenberghe


Galerie de photos:


     To the gallery (2 images in the gallery)

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

No phosphorescence seen by naked eye whatever the type of UV


Said to be not fluorescent in the original describing paper, tough, a perfectly determined specimen shows fluorescence with a typical uranyl spectra.

Main Activator(s) and spectrum:

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

Peaks in the spectrum (nm):

(UO2)2+: (464,5nm), 484,3 502,2 522,7 545,1 566,8nm (594,1nm)

Agricolaite, Jachymov, Czech Republic;
Spectrum: G. Barmarin, Col: Luc Vandenberghe

Best Locality for luminescence(*):

(*)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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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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