Database of luminescent minerals 

SPESSARTINE

Chemical formula: Mn₃⁺²Al₂(SiO₄)₃

Family: Silicates

Status: IMA-GP

Crystal system : Isometric

Display mineral: NON

Luminescence:

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Phosphorescence (in the common sense of the term) observable with the naked eye:

No phosphorescence visible to the naked eye under any type of UV

Activator(s) and spectrum:

Activator(s): Cr³⁺, Mn⁴⁺,  

Peaks in the spectrum (nm):

Cr³⁺ : lines at 606, 627, 694, 707nm

Mn⁴⁺ ? : band around 650nm

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

Comments on spectrum and activators:

Laser excitation;

Best localities for fluorescence (*):

(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence

Bibliographic reference for luminescence:

• Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

  http://www.mindat.org/show.php?name=Spessartine

  http://webmineral.com/data/Spessartine.shtml

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