Lijst van fluorescerende mineralen


kunzite


Scheikundige formule:Zie SPODUMENE

Familie: Silicaten

Status:

Mineraal om tentoon te stellen: Nee


Fluorescentie:


UV Type Kleur Intensiteit Frequentie van de observatie
Lange Golven (365nm):      Oranje
Korte Golven(254 nm):      Zalm roos
    
Andere kleuren korte golven:     
Violet roos ,

Daglicht foto


Kunzite;
Darre Pech, Nangarhar Province, Afghanistan
Photo and Copyright:
Middleearthminerals.com
Used with permission of the author

Korte golf foto (254nm)


Kunzite;
Darre Pech, Nangarhar Province, Afghanistan
UVSW, Photo and Copyright:
Middleearthminerals.com
Used with permission of the author

 

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


UV Type Kleur Intensity Observation Frequency
Lange golven(365nm): Oranje Middelmatig
Korte golven (254 nm): Violet rood Middelmatig
 

Thermoluminescencie: Ja


Activator en spectrum:


Voornaamste Activator: Mn2+

Andere activatoren: Cr3+ , TiO6 ,

Pieks in het spectrum (nm):

Large band at 430 nm,

Mn2+ : large band peaking around 620 nm  (Gorobets)  

large band peaking at 605nm


Col. G. Barmarin; Spectre: G. Barmarin


Commentaar over activators en spectra:


The phosphorescence of Kunzite was discovered by G. F. Kunz himself in 1903. Baskerville also studyed Kunzite luminescence in 1903. Extended studies were later made on the spectra of Kunzite by Pochettino and by Nichols who found that the fluorescence emitted light was polarized. Nichols also describe the fluorescence emitted by electron excitation as two bands : a strong broad band  from 515nm to 690nm and a weak one extending from 420nm to 480nm. He also pointed that the band around 600nm have a strong phosphorescence and the other band have none. Nichols studied the thermoluminescence at 325°C and found that it was not polarized. The thermoluminescence ceased at 400°C.

At 20°C the peak around 590nm is nearly symetric being somewhat steeper toward the violet. On cooling to -180°C, the fluorescence color  becomes much redder to the eye but the spectrum show no resolution into narrow bands (DeMent 1949)

Tanaka (1921-1932) demonstrated that the most important activating agents wich cause the luminescence of Kunzite is Manganese. However, he stated that Samarium and Ytterbium had a role as activator. In the Kunzite from Pala, Ca, USA, containing a few tenths of a percent of manganese, he found in the bright orange light emitted by fluorescence 12 manganese bands,  4 samarium bands and one thallium band. 


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=Kunzite

  http://webmineral.com/data/Kunzite.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: