Lijst van fluorescerende mineralen

AGRELLITE

Scheikundige formule: NaCa₂Si₄O₁₀F

Familie: Silicaten

Status: IMA-A

Kristal Systeem: Trikliniek

Mineraal om tentoon te stellen: Ja

Fluorescentie:

Daglicht foto

AGRELLITE, Kipawa River, Quebec, Canada;

Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author

Korte golf foto (254nm)

AGRELLITE, Kipawa River, Quebec, Canada;
OC (254 nm).
Photo and Copyright: James Hamblen
Site of the author
Used with permission of the author

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

Commentaar:

Sometimes associated with : hyalite (fluo green SW), VLASOVITE (fluo yellow-orange SW), feldspath (fluo red SW), red eudyalite and brown mosandrite;

Some SW 4 color specimens from the Darai-Pioz Glacier, Tajikistan. have white fluorescing Baratovite, Pink fluorescing Agrellite, Magenta fluorescing Microcline, and an unknown fluorescing Green (hyalite?).

Activator en spectrum:

Voornaamste Activator: Mn²⁺

Andere activatoren: Fe³⁺ , Eu²⁺ , Ce³⁺ , Sm³⁺ , Dy³⁺ , Nd³⁺ , Gd³⁺ ,

Pieks in het spectrum (nm):

Mn²⁺ replacing Ca²⁺: Large band peaking at 580nm
Eu²⁺: 410nm
Sm³⁺: 560, 597, 602, 640nm
Dy³⁺: 475, 485, 580nm
Fe³⁺ replacing Si⁴⁺: 740nm
Nd³⁺(?): 955nm
Ref. sample: (555), (561), 566, (593), (600), 604, (612), (639), 646, 661, 698 and 706 nm

Commentaar over activators en spectra:

A brief but distinctive orange flash is seen before the magenta luminescence (typical of Mn activator?).
RE elements (RRE2+ and RRE3+) replacing Ca2+ are suspected as activators. Also Mn and Fe.
Fluorescence: pink LW after Robbins and other authors, clearly visible with pointer-laser @405nm.
As with other minerals activated by RRE, the shape of the spectrum is strongly influenced by the resolution of the spectrometer because RRE have a lot of very narrow peaks very close from each other. If the resolution of the spectrometer is not sufficient, the pikes are agglomerated in larger entities.

There is sometime a green fluorescent mineral accompagning agrellite. It is sometime reported as thorium activated calcite (???) that will glow green sw and mw whitish green lw and will phos under all 3 waves. Sometime thorite coating are invoqued to explain the green fluorescence in specimens from Kipawa.

Albite fluorescing red SW is also often present.

Beste vindplaats voor fluorescentie(*):

• Mt Kipawa Complex, Kipawa River, Sheffield Lake, Villedieu Township, Québec, Canada;
• Darai-Pioz (Dara-i-Pioz) Glacier, Alai (Alayskiy) Range, Tien Shan Mts, Region of Republican Subordination, Tajikistan;
• Kedrovyi alkaline Massif, Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Yakutia), Eastern-Siberian Region, Russia;

(*)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 ,
• Luminescenza nel regno minerale, Guido Mazzoleni, fotografia Roberto Appiani, Libri Sandit, 2010, ISBN 978-88-95990-63-7 ,

Referentie voor luminenscentie op het internet:

• http://www.turnstone.ca/rom94soa.htm
• https://www.mindat.org/min-57.html
• http://www.handbookofmineralogy.com/pdfs/agrellite.pdf
• Luminescence of Agrellite Specimen from the Kipawa, River Locality, Maria Czaja and Radosław Lisiecki
• UV Waves January/February 1996
• Projet Terres Rares au Québec
• Geonieuws January 2010
• Agrellite fluorescence by Bob Fosbury on Flickr and https://www.flickr.com/photos/bob_81667/6694411183/

 

Images:

 

• Kipawa, Canada, SW: https://www.mindat.org/photo-75962.html
• Kipawa, Canada, SW: https://www.mindat.org/photo-602666.html
• Kipawa, Canada, LW: https://www.mindat.org/photo-666389.html

 

Videos:

 

• On Nature Rainbows or on Youtube (same)

Mineralogische Referentie op het internet:

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

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

Onderzoek op Internet:

  Beelden op 'Google Image'

  Dokumenten in het Nederlands op Google

  Dokumenten in alle talen op Google

  Onderzoek op Wikipédia