Database of luminescent minerals 

THENARDITE

Chemical formula: Na₂SO₄

Family: Sulfates

Status: IMA-GP

Display mineral: NON

Luminescence:

Daylight picture

THENARDITE

Photo and Copyright: Bill Barr
Used with permission of the author;

Midwave (330nm) picture

THENARDITE under UVMW

Photo and Copyright: Bill Barr
Used with permission of the author;

Shortwave (254nm) picture

THENARDITE under UVSW

Photo and Copyright: Bill Barr
Used with permission of the author;

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

Activator(s) and spectrum:

No spectrum yet

Comments on spectrum and activators:

Cathodoluminescence: dark blue.

Best localities for fluorescence (*):

• Soda Lake, Carrizo Plain, San Luis Obispo Co., California, USA;
• Searles Lake, San Bernardino Co., California, USA;
• Ummrisha Lake, Wadi Natrun depression, Western Desert, Egypt;

(*)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 ,

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

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

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

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