Database of luminescent Minerals


Chemical Formula: C22H14

Familly: Organic

Status: IMA-GP

Crystal System: Orthorhombic

Mineral for Display: No

Associated names (luminescent varieties, discredited names, synonymes etc.):  curtisite


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Bluish White Very StrongAlways
Mid waves (320 nm):      Greenish white Very StrongAlways
Short Waves (254 nm):      Greenish white Very StrongAlways
Other colors LW:                    
Yellowish White , Greenish Yellow , Bluish Green , Greenish white ,
Other colors MW:                         
Greenish Yellow , Green , Greenish , Bluish Green , Greenish white ,
Other colors SW:                    
Bluish White , Greenish Yellow , Green , Greenish ,

Daylight Picture

Hernik mine, East Slovakia, 3.5 cm wide
Photo and Copyright: Paul Garland
Pictures on Flickr:
Used with permission of the author

Short Waves Pictures (254nm)

Hernik mine, East Slovakia, 3.5 cm wide
Photo and Copyright: Paul Garland
Pictures on Flickr:
Used with permission of the author


Galerie de photos:


     To the gallery (3 images in the gallery)

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

No Data


Identical to dimethylbenzphenanthrene (Handbook of Mineralogy) but possibly a complex mixture of polycyclic aromatic hydrocarbons (PAH).

Raman spectroscopy studies indicate that it may be a mixture of complex hydrocarbons including benzonaphthothiophenes (chemical formula: C16H10S) and dinaphthothiophenes (chemical formula: C20H12S)

Approximate abundance of PAHs contained in idrialite from Skaggs Springs (Wise et al. 1986) : picene [40%], chrysene [7%], benzo-phenanthro-thiophene [10%], dibenzo-carbazole [trace], dibenzo-fluorene [33%], indeno-fluorene [7%], and benzo-indeno-fluorene [4%].

Potentially dangerous substance: the PAH contened in Idrialite are toxic.

Main Activator(s) and spectrum:

Most Common Activator: Intrinsic organic material

Peaks in the spectrum (nm):

Peaks at: 454nm, 482nm, 512nm, 544nm, 597nm ;

Col. G. Barmarin; Spectre: G. Barmarin


  To the spectrum gallery (2 spectra in the gallery)

Comments on activators and spectra:

Blue luminescence due to the two linearly annelated benzene rings characteristic of aromatic compound (singlet-singlet electron transition within the benzene rings.Spectral lines (cm-1): 250, 235, 222, 208;

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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