Workgroup    Fluorescence
Halides
http://www.mindat.org/min-1576.html

Fluorite octahedral cleavages, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA  (http://www.mindat.org/loc-3753.html)
Activator blue fluorescence: Eu2+ partially replacing Ca2+
Activator golden yellow fluorescence: inclusions of droplets of brine from which the fluorite grew. Possibly with some contribution of organic matter.
 
http://www.mindat.org/min-1576.html

Fluorite: Hammam-Zriba Mine, Zriba-Village, Zaghouan Governorate, Tunisia (http://www.mindat.org/loc-26782.html)
Activator light blue fluorescence: organic material.
http://www.mindat.org/min-1576.html

Fluorite:Seilles, Andenne, Namur Province, Belgium (http://www.mindat.org/loc-314.html)
Activator blue fluorescence: Eu2+ replacing Ca2+
Activator red fluorescence: M-center (2F+Na+)
Specimens from collection of the KBIN in Brussels
 
fluorite seilles 2
fluorite seilles 3
fluoriie_seilles4
 
http://www.mindat.org/min-1576.html

Fluorite: Frazer's Hush Mine, Rookhope District, Weardale, North Pennines, Co. Durham, England, UK (http://www.mindat.org/loc-1411.html)
Activator blue fluorescence fluorite: Eu2+ replacing Ca2+
Activator red fluorescence calcite: not yet investigated, probably Mn2+ and Pb2+
 
http://www.mindat.org/min-1804.html

Halite: Fulda, Hessen, Germany
Activator red fluorescence: Mn2+ replacing Na+ with Pb2+ as a co-activator.
 
http://www.mindat.org/min-1804.html

Halite: Wintershall Potash Works, Heringen, Werra valley, Hessen, Germany (http://www.mindat.org/loc-1829.html)
Activator red fluorescence: Mn2+ replacing Na+ with Pb2+ as a co-activator.
http://www.mindat.org/min-1804.html

Halite: Rudna Mine, Lubin District, Legnica, Lower Silesia, Poland (http://www.mindat.org/loc-21360.html)
Activator red fluorescence: Mn2+ replacing Na+ with Pb2+ as a co-activator.
 
long wave UV
Long wave UV + midrange UV
Short wave UV
http://www.mindat.org/min-4181.html

Villiaumiet: Aris Quarries, Aris, Windhoek District, Khomas Region, Namibia (http://www.mindat.org/loc-7687.html)
Activator orange fluorescence: Intrinsic: M-centers (M-center = 2 F-centers + M+    (Na+, H+ etc.))
 
 
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Copyright © 2014 by Axel Emmermann  ·  All Rights reserved  ·  E-Mail: fluorescentie@minerant.org
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