Database of luminescent Minerals
THORNASITE
Chemical Formula: Na12Th3[Si8O19]4 18H2O
Familly: Silicates
Status: IMA-A
Crystal System: Rhomboedric
Mineral for Display: No
Luminescence:
| UV Type | Main color | Intensity | Observation Frequency |
|---|---|---|---|
| Long Waves (365nm): | Green | Medium | Mid waves (320 nm): | Green | Strong | Short Waves (254 nm): | Green | Strong |
| Other colors LW: | Bluish White , Bluish , Greenish white , | ||
| Other colors SW: | Bluish White , Bluish , Greenish white , | ||
Phosphorescence (in the common meaning of the term) seen by naked eye:
No Data
Comments:
Former UK-27 of Mont St Hilaire.
Main Activator(s) and spectrum:
Most Common Activator: (UO2)2+ (Uranyl ion) as impurities
No spectrum for the momentBest Locality for luminescence(*):
- Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;
- Aris Quarries, Aris, Windhoek District, Khomas Region, Namibia (pale green)
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical 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 ,
- Mt St Hilaire Website: http://www.saint-hilaire.ca ,
- Uranium minerals Website: http://www.uraniumminerals.com ,
- Introduction to radioactive minerals, Robert Lauf, Schiffer Publishing, 2008, ISBN 978-0-7643-2912-8 ,
Luminescence Reference on internet:
- http://www.crlc.ca/Fluorescent Mineral Database 1.pdf
- ARIS, Mineralogy of the famous alkaline phonolite, Uwe Kolitsch and Al.
- http://www.handbookofmineralogy.com/pdfs/thornasite.pdf
- MONT-SAINT-HILAIRE, History, Geology, Mineralogy, Laszlo HORVATH, The Canadian Mineralogist, Special Publication 14, 2019
Mineralogical Reference on internet:
http://www.mindat.org/show.php?name=Thornasite
http://webmineral.com/data/Thornasite.shtml
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Note: While all due attention has been paid to the implementation of the database, it may contain errors and/or accidental omissions. By nature, the database will always be incomplete because science always evolves according to new analysis.
A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.
A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.