Database of luminescent Minerals


Chemical Formula: (Mg,Fe+2)9(SiO4)4(F,OH)2

Familly: Silicates

Status: IMA-GP

Crystal System: Monoclinic

Mineral for Display: No


UV Type Main color Intensity Observation Frequency
Short Waves (254 nm):      Orange Strong
Other colors SW:     
Orangy yellow ,

Daylight Picture

CLINOHUMITE, Tajikistan;
Col. G.Barmarin; Photo: G. Barmarin

Short Waves Pictures (254nm)

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: Mn2+

Other activators:            Fe3+ , TiO6 , n[TiO6] cluster ,

Peaks in the spectrum (nm):

TiOn (Ti4+ - Si4+) :  500nm

n[TiOn] :  550-600nm

Mn2+ repl. Mg2+ : 630 - 650nm 

Fe3+ :  broad band at 745nm

OH (?) : 660nm (peak)

Col. G. Barmarin; Spectre: G. Barmarin


  To the spectrum gallery (1 spectra in the gallery)

Comments on activators and spectra:

Steady state luminescence of clinohumite was connected to Mn2+ and possible TiO6 centers (Gorobets and Rogojine 2001).

Excitation by CW laser with 532 nm revealed two emission bands which may be ascribed to Mn2+ and Fe3+ (Gaft)

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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