Database of luminescent Minerals


Chemical Formula: (Ce,La,Ca)BSiO5

Status: IMA-GP

Mineral for Display: No


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

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

No Data


 COLOR CHANGE from red-brown in halogen or sunlight to YELLOW in fluorescent light.

Main Activator(s) and spectrum:

Most Common Activator: Sm3+

Other activators:            Dy3+ , Tb3+ ,

Peaks in the spectrum (nm):

Tb3+  : 430, 540nm

Sm3+ replacing Ce3+ : 605nm

Dy3+ : 485nm

No spectrum for the moment

Comments on activators and spectra:

A complex spectrum due to Rare Earth activators.

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:

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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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