Lijst van fluorescerende mineralen


Ruby


Scheikundige formule:Zie CORINDON

Familie: Oxiden en Hydroxiden

Status: NON APPR

Kristal Systeem: Rhomboedrisch

Mineraal om tentoon te stellen: Ja

Fluorescerende variëteiten:  anyolite

Fluorescentie:


UV Type Kleur Intensiteit Frequentie van de observatie
Lange Golven (365nm):      Rood Sterk
Midden Golven (320 nm):      Rood Middelmatig
Korte Golven(254 nm):      Rood Middelmatig
    

Lange golf foto (365nm)


Rubis, UV LW,
Luc Yen, Vietnam,
Photo & Col. G. Barmarin

 

Foto galerij:

            ...

     Naar de volledige galerij (5 beelden in totaal)


Fosforescentie (in de algemene betekenis) zien met het blote oog:


Geen fosforescentie zien met het blote oog met alle golven

Thermoluminescencie: Ja


Commentaar:


Anyolite: corindon in zoïsite and pargasite rock mined in Tanzania.

 

Prilep rubies in the Republic of Macedonia appear to be a mixture of diaspore and corundum. They have the particularity of having an orange fluorescence in some areas and a red (classic) fluorescence in others with rarely also a yellow fluorescence at the top or center of the crystals. Orange fluorescence could be attributed to diaspore (Mn2+ replacing Al3+ with a charge compensation mechanism see diaspore) and ruby red (Cr3+ replacing Al3+). Margarite (green mica) included in corundum emits also a white to slightly greenish fluorescence (see bibliography below)

 

The slight almost linear displacement of the wavelength of the R1 and R2 lines with pressure (several GPa) makes it possible to measure colossal pressures with a certain degree of accuracy.

 


Activator en spectrum:


Voornaamste Activator: Cr3+

Pieks in het spectrum (nm):

Cr3+ replacing Al3+ : Lines at 692.8 (693), 694.3nm  (sharp R1 and R2 lines)

Cr3+ :  658.2 , 668.2 ,  674.1 , 680 (small lines)  

N-lines (Cr3+ pairs) : 705.8 , 712nm (small lines)


Spectrum: Michael Gaft, Petah Tikva, Israel. Plot: Institute of Mineralogy, University of Vienna, Austria, with permission of the authors.

   ...

  Vers la galerie de spectres (1 spectres au total)


Commentaar over activators en spectra:


Activator: Cr3+ replacing Al3+ giving strong well known 2E->4A2 lines with long decay time;

Besides that, much weaker narrow lines present, which are connected with Cr-pairs and more complicated complexes (so called N-lines) (Tarashchan 1978).

 

Lifetime of the R-line: 3,6ms;

 

 


Beste vindplaats voor fluorescentie(*):


(*)Gegevens zijn niet exhaustieve, ze zijn beperkt tot de meest belangrijke plaatsen voor fluorescentie


Referentie voor fluorescentie:



Referentie voor luminenscentie op het internet:



Mineralogische Referentie op het internet:


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

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

Onderzoek op Internet:

  Beelden op 'Google Image'

  Dokumenten in het Nederlands op Google

  Dokumenten in alle talen op Google

  Onderzoek op Wikipédia


 

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.

 


Snel opzoeking van een fluorescerend mineraal: