Lijst van fluorescerende mineralen

ELBAITE

Scheikundige formule: Na(Li,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Familie: Silicaten

Status: IMA-GP

Kristal Systeem: Rhomboedrisch

Mineraal om tentoon te stellen: Nee

Fluorescentie:

Daglicht foto

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

Korte golf foto (254nm)

TOURMALINE;
UVSW
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:

Watermelon tourmaline of the Dunton Gem Mine shows luminescence of the red core in intense sky blue.

In practice, all Dunton Quarry gem elbaite fluoresce. Although worldwide elbaite does not usually fluoresce, several Maine localities have this characteristic, but few localities have such a high proportion of their elbaite that is fluorescent. Elbaite from Newry with lepidolite replacement may have a creamy yellow fluorescence in both short and long wave UV due to the lepidolite's fluorescence. (see: http://www.mindat.org/photo-188642.html )

Small crystals of achroite from Elba show a classic blue fluorescence under UV at 380nm and a very unusual strong yellow fluorescence under UV at 306nm.

The activator is unknown, but achroite contains Mn and a large amount of Mg (15-20%); however, many tourmalines can contain as much Mg without fluorescing.

Very small crystals embedded in quartz are only detectable by their strong fluorescence.

Other colored tourmalines (pink, yellow and green) from Elba sometimes show very weak yellow luminescence.

Activator en spectrum:

Beste vindplaats voor fluorescentie(*):

• Dunton Gem Quarry, Newry, Oxford Co., Maine, USA;
• Stak Nala, Skardu District, Pakistan;
• Paprok, Kamdesh District, Nuristan, Afghanistan;
• Grotta Oggi near San Piero, Island of Elba, Italy;

(*)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 ,

Referentie voor luminenscentie op het internet:

• https://www.mindat.org/locentry-19470.html




Images:

 

• Dunton Gem Quarry, USA: http://www.mindat.org/photo-188642.html
• Paprok, Afghanistan: https://www.mindat.org/photo-526039.html
• Paprok, Afghanistan : https://www.mindat.org/photo-526037.html

Mineralogische Referentie op het internet:

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

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

Onderzoek op Internet:

  Beelden op 'Google Image'

  Dokumenten in het Nederlands op Google

  Dokumenten in alle talen op Google

  Onderzoek op Wikipédia