Database of luminescent Minerals


Chemical Formula:

Familly: Organic


Crystal System: Amorphous

Mineral for Display: No

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


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

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

No Data


A widespread hydrocarbon mineraloid of variable composition, usually in sedimentary or low-grade metamorphic rocks. It differs from asphalt by being brittle, infusible and relatively insoluble. Formed by polymerization of petroleum over geological time periods, therefore being related to petroleum the same way that amber is related to tree resin. (Mindat)


A mixture of hydrocarbons, Uraninite and some sulphides. Uranium-bearing pyrobitumen. Originally reported from Parry Sound District, Ontario, Canada.


Grahamite: a variety fluorescing very weak brownish from West Virginia (Btumens in Ore Deposits, published by John Parnell, Henryk Kucha, P. Landais)

Main Activator(s) and spectrum:

No data

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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