Database of luminescent minerals 

URANOPHANE

Chemical formula: Ca(UO₂)₂[SiO₃(OH)]₂ 5H₂O

Family: Silicates

Status: IMA-GP

Crystal system : Monoclinic

Display mineral: NON

Luminescence:

Daylight picture

URANOPHANE ,
Mina Eureka termino de Castell-estaó,
municipio de La Torre de Cabdella,
Lérida province, Spain
Photo and Copyright: Joan Abella i Creus, Spain
Used with permission of the author

Shortwave (254nm) picture

URANOPHANE , UVSW
Mina Eureka termino de Castell-estaó,
municipio de La Torre de Cabdella,
Lérida province, Spain
Photo and Copyright: Joan Abella i Creus, Spain
Used with permission of the author

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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

Comments:

Synonyme: uranotile; 

Activator(s) and spectrum:

Activator(s): (UO₂)²⁺ (ion Uranyle) intrinsèque ,

Peaks in the spectrum (nm):

499nm, 513nm, 535nm, 560nm, 586nm, 597nm, 609nm

Col. G. Barmarin; Spectre: G. Barmarin

Spectrum Galery:

  
  Go to the galery (3 spectra)

Comments on spectrum and activators:

Spectra Gorobets: 19400 cm-1, 18670 cm-1, 17960 cm-1;

Best localities for fluorescence (*):

• Grants District, New Mexico, USA;
• Mina Eureka termino de Castell-estaó, municipio de La Torre de Cabdella, Lérida province, Spain;
• Clara Mine, Oberwolfach, Ortenaukreis, Freiburg, Baden-Württemberg, Germany;
• Menzenschwand, St Blasien, Baden-Württemberg, Germany;

(*)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 ,
• Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
• Uranium minerals Website: http://www.uraniumminerals.com ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

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

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

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