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Indium-bearing chalcopyrite and sphalerite from the Gåsborn area, West Bergslagen, central Sweden

Published online by Cambridge University Press:  05 July 2018

Kees Kieft  and
Arend H. Damman
Kees Kieft
Affiliation:
Institute of Earth Sciences, Free University, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
Arend H. Damman
Affiliation:
Institute of Earth Sciences, Free University, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
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Abstract

In the Gåsborn area, West Bergslagen, central Sweden, Fe-rich, indium-bearing (0.1–2.0wt.% In) sphalerite is replaced by Fe-poor sphalerite containing minute inclusions of chalcopyrite, roquesite and an unnamed In-Zn-rich phase. Fe-rich, In-bearing sphalerite is primary; indium occurs as a roquesite molecule in solid solution. Fe-poor sphalerite, roquesite, chalcopyrite and the unnamed In-Zn-rich phase were formed from In-bearing sphalerite by secondary processes, characterized by the so-called ‘chalcopyrite disease’.

Keywords

sphaleriteindiumchalcopyrite diseaseGåsbornSweden
Type
Non-Silicate Mineralogy
Information
Mineralogical Magazine , Volume 54 , Issue 374 , March 1990 , pp. 109 - 112
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1990

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