Database of luminescent Minerals


Chemical Formula: C13H10

Familly: Organic

Status: IMA-GP

Crystal System: Orthorhombic

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Blue Strong
Short Waves (254 nm):      Blue Strong
Other colors LW:     
Bluish White ,
Other colors SW:          
Bluish White , Violet blue ,

Daylight Picture

KRATOCHVILITE, Terril de Tamines, Belgique;

Col. G.Barmarin; Photo: G. Barmarin

Long Waves Picture (365nm)

KRATOCHVILITE, Terril de Tamines, Belgique;
Col. G.Barmarin; Photo: G. Barmarin

Short Waves Pictures (254nm)

KRATOCHVILITE, Terril de Tamines, Belgique;
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: Intrinsic organic material

Peaks in the spectrum (nm):

large band. max: 460nm, band at 572 nm / peaks at: 408nm, 434nm, 460nm, 488nm, 512nm

Col. G. Barmarin; Spectre: G. Barmarin

Comments on activators and spectra:

Organic compound formed in burning pyritic shale or coal fires. It is not clear whether kratochvillite is the chemical fluorene (C13H10) or anthracene (C14H10).

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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