SPINELLE
Scheikundige formule: MgAl2O4
Familie: Oxiden en Hydroxiden
Status: IMA-GP
Kristal Systeem: Cubisch
Mineraal om tentoon te stellen: Ja
Fluorescentie:
UV Type |
Kleur |
Intensiteit |
Frequentie van de observatie |
Lange Golven (365nm): | Rood | | |
Midden Golven (320 nm): | Rood | | | Korte Golven(254 nm): | Rood | | | | | | |
Daglicht foto
Spinelle, Mogok, Burma;
Photo et col.: G. Barmarin
Lange golf foto (365nm)
Spinelle, Mogok, Burma; Red UVLW
Photo et col.: G. Barmarin
Foto galerij:
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Naar de volledige galerij (10 beelden in totaal)
Fosforescentie (in de algemene betekenis) zien met het blote oog:
Geen fosforescentie zien met het blote oog met alle golvenThermoluminescencie: Ja
Activator en spectrum:
Voornaamste Activator: Cr3+
Andere activatoren: Mn2+ ,
Pieks in het spectrum (nm):
Cr3+ : lines at 676 (675), 686 (685), 698 (697), 708 (707), 712, 718 (717) nm
Mn2+ : broad band peaking at 550-612 nm
Spectrum: Michael Gaft, Petah Tikva, Israel. Plot: Institute of Mineralogy, University of Vienna, Austria, with permission of the authors.
...
Vers la galerie de spectres (2 spectres au total)
Commentaar over activators en spectra:
Activator: Cr3+ and possibly Mn2+ (broad band peaking at 612 nm or emissions bands with max from 550 to 620nm).
The fluorescence of spinel was studied as early as 1887 by De Boisbaudran who found a red glow in most specimens and some green fluorescence in a few.
Crookes plotted in 1887 the red fluorescence spectra of spinel and pointed out the particular sharp band at 685,7nm.
Nichols studied the cathodoluminescence of spinel in 1928.
Beste vindplaats voor fluorescentie(*):
- Mogok, Burma;
- An Phu, Lục Yên District, Yên Bái Province, Vietnam;
(*)Gegevens zijn niet exhaustieve, ze zijn beperkt tot de meest belangrijke plaatsen voor fluorescentie
Referentie voor fluorescentie:
- 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 ,
- The World of Fluorescent Minerals, Stuart Schneider, Schiffer Publishing, 2006, ISBN 0-7643-2544-2 ,
- Luminescence Spectroscopy of Minerals and Materials, M. Gaft, R. Reisfeld, G. Panczer, Springer Editor, ISBN: 10 3-540-21918-8 ,
- Luminescent Spectra of Minerals, Boris S. Gorobets and Alexandre A. Rogojine, Moscow, 2002 ,
- Ultraviolet Light and Fluorescent Minerals, Th. Warren, S. Gleason, R. Bostwick, et E. Verbeek, 1995, ISBN 0-9635098-0-2 ,
- Luminescenza nel regno minerale, Guido Mazzoleni, fotografia Roberto Appiani, Libri Sandit, 2010, ISBN 978-88-95990-63-7 ,
- Handbook of Fluorescent Gems and Minerals, a practical guide for the gem and mineral collector, Jack de Ment, 1949 ,
Referentie voor luminenscentie op het internet:
Mineralogische Referentie op het internet:
http://www.mindat.org/show.php?name=Spinelle
http://webmineral.com/data/Spinelle.shtml
Onderzoek op Internet:
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Onderzoek op Wikipédia
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