Database of luminescent Minerals


Chemical Formula: CaB2(SiO4)2

Familly: Silicates

Status: IMA-GP

Crystal System: Orthorhombic

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Long Waves (365nm):      Blue
Short Waves (254 nm):      Blue Weak
Other colors SW:     
Green ,

Daylight Picture


Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author

Short Waves Pictures (254nm)


Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author


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

No Data

Triboluminescence: Yes

Main Activator(s) and spectrum:

Most Common Activator: Eu2+

Other activators:            (UO2)2+ (Uranyl ion) as impurities , Ce3+ , Sm3+ , Eu3+ , Dy3+ , Tb3+ , Mn2+ , Yb2+ ,

Peaks in the spectrum (nm):

Ce3+: 347, 367nm
Eu2+: 438, 455nm
Yb2+: 535nm
Eu3+: 580, 592, 610, 620, 654, 690nm
(All REE replacing Ca2+)

Spectrum: Michael Gaft, Petah Tikva, Israel. Plot: Institute of Mineralogy, University of Vienna, Austria, with permission of the authors.


  To the spectrum gallery (6 spectra in the gallery)

Comments on activators and spectra:

Triboluminescence cited by De Ment (1947).

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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