WURTZITE-4H
Chemical Formula: ZnS
Familly: Sulfide
Status: PLT
Crystal System: Hexagonal
Mineral for Display: No
Luminescence:
UV Type |
Main color |
Intensity |
Observation Frequency |
|
| | | |
Long Waves (365nm): | Orange | Medium | | | | | |
Other colors LW: | Yellow , |
Phosphorescence (in the common meaning of the term) seen by naked eye:
UV Type |
Color |
Intensity |
Observation Frequency |
Long Wave (365nm): | Yellowish White | | |
Comments:
Synthetic wurtzite has been studied and user as a commercial phosphor.
Main Activator(s) and spectrum:
Most Common Activator: Mn2+
Peaks in the spectrum (nm):
Mn2+ replacing Zn2+ : large band peaking around 630-640nm
No spectrum for the moment
Comments on activators and spectra:
Potentially same activators as sphalerite and same colors;
Best Locality for luminescence(*):
- Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada;
- Olkusz, Olkusz District, Małopolskie, Poland;
- Plombières-Vieille Montagne (Plombières-Altenberg) District, Verviers, Liège Province, Belgium;
- Schmalgraf Mine, Moresnet, Kelmis, Plombières-Vieille Montagne (Plombières-Altenberg) District, Verviers, Liège Province, Belgium;
- Luccheti Quarry, Carrara area, Tuscany, Italy (xl in marble fluorescing yellow);
- Agios Philippos Mine, Kirki Mines, Évros, Thracia, Greece (2013, orange on the crystals and yellow on the matrix + phosphorescence);
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
Bibliographical Reference for luminescence:
- 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 ,
Luminescence Reference on internet:
- Fluorescent Sphalerite and Wurtzite from the Carrara Area, Antonello Dallegno, Guido Mazzoleni in Journal of the Fluorescent Mineral Society, vol 33, 2013
- 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=Wurtzite-4h
http://webmineral.com/data/Wurtzite-4h.shtml
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