Database of luminescent minerals 

SCHROECKINGERITE

Chemical formula: NaCa₃(UO₂)(SO₄)(CO₃)₃F 10H₂O

Family: Carbonates

Status: IMA-GP

Crystal system : Triclinic

Display mineral: NON

Associated names (luminescent varieties, discredited names, synonyms, etc.): dakeite,  neogastunite, 

Luminescence:

Daylight picture

SCHROECKINGERITE,
Red Desert, Sweetwater Co., Wyoming., USA
Photo and Copyright: Christopher J. Stefano, Michigan, USA
Used with permission of the author

Longwave (365nm) picture

SCHROECKINGERITE UVLW,
Red Desert, Sweetwater Co., Wyoming., USA
Photo and Copyright: Christopher J. Stefano, Michigan, USA
Used with permission of the author

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

No data

Comments:

Old name: Dakeite;

Activator(s) and spectrum:

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

Peaks in the spectrum (nm):

465nm, 483nm, 504nm, 526nm, 550nm, 577nm, 608nm, 641nm, 676nm, 713nm

SCHROECKINGERITE, Excitation: laser 405nm. Col. G. Barmarin; Spectre: G. Barmarin

Comments on spectrum and activators:

Lifetime: 125μs @505nm;

Best localities for fluorescence (*):

• Hillside mine, Yavapai county, Arizona, USA;
• Svornost Mine, Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic;
• Isolagrande Mine, Isolagrande, Murialdo, Savona Province, Liguria, Italy;

(*)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 ,
• Uranium minerals Website: http://www.uraniumminerals.com ,
• Introduction to radioactive minerals, Robert Lauf, Schiffer Publishing, 2008, ISBN 978-0-7643-2912-8 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

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

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

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