Database of luminescent minerals 

DATOLITE

Chemical formula: Ca₂B₂Si₂O₈(OH)₂

Family: Silicates

Status: IMA-GP

Crystal system : Monoclinic

Display mineral: NON

Luminescence:

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

No data

Activator(s) and spectrum:

Activator(s): Eu²⁺, Ce³⁺,  Eu³⁺,  Mn²⁺ ,  Yb²⁺,  

Peaks in the spectrum (nm):

Ce³⁺: 335, 350, 360, 370nm
Eu²⁺: 430, 445, 455nm
Yb²⁺: 520nm
Mn²⁺: 565nm
Eu³⁺: 577, 598, 510, 616 - 617, 700nm
(All repl. Ca²⁺)

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

Spectrum Galery:

  
  Go to the galery (4 spectra)

Comments on spectrum and activators:

Luminescence centers Eu²⁺, Yb²⁺ and Mn²⁺, characterize steady-state spectra of datolite (Gaft et al. 1979). By using laser-induced time-resolved spectroscopy Gaft and al. were able to detect the following emission centers: Mn²⁺, Ce³⁺, Eu²⁺, Eu³⁺, Sm³⁺, Dy³⁺

Best localities for fluorescence (*):

• Paterson, Passaic Co., New Jersey, USA; 
• Ca de Giannasi, Frassinoro, Modena Province, Emilia-Romagna, Italy;
• Mendicino  County, California, USA (SW+LW bright lemon yellow);
• Skaggs Springs, Warm Springs Dam, Coast Range, Sonoma Co., California, USA;
• Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;

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

Bibliographic reference for luminescence:

• The Henkel Glossary of Fluorescent Minerals, Dr. Gerhard Henkel, Published by the FMS, 1989 ,
• Fluorescence: Gems and Minerals Under Ultraviolet Light, Manuel Robbins, 1994, Geoscience Press, ISBN 0-945005-13-X ,
• Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
• Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

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

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

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