Database of luminescent Minerals


NOT FLUORESCENT but cited by some authors

Chemical Formula:See QUARTZ

Familly: Oxides and hydroxides

Status: NR

Crystal System: Rhomboedric

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Short Waves (254 nm):      Green WeakVery rarely

Daylight Picture

Kedon, Magadanskaya Oblast, Far-Eastern Region, Russia;
Col. G.Barmarin; Photo: G. Barmarin

Short Waves Pictures (254nm)

Amethyste, UVSW
Kedon, Magadanskaya Oblast, Far-Eastern Region, Russia;
Col. G.Barmarin; Photo: G. Barmarin


Galerie de photos:


     To the gallery (7 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


You can sometime find amethyst crystal covered by an invisible coating of hyalite fluorescing in green under SW. It looks like it is the amethyst crystal itself which is luminescent but it is the hyalite.

Main Activator(s) and spectrum:

Most Common Activator: (UO2)2+ (Uranyl ion) as impurities

Peaks in the spectrum (nm):

UO22+ (hyalite coating) : Broad band (120nm) peaking at 514 and 550nm, (493), (594)

No spectrum for the moment

Comments on activators and spectra:

Broad band with max at 514nm and 550nm and shoulder at 493 and 594nm; the max are in correlation with the peaks of hyalite spectrum taken from other part of the rock.

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:

Search 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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