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Nomenclature for the laueite supergroup

Published online by Cambridge University Press:  02 January 2018

S. J. Mills and
I. E. Grey
S. J. Mills*
Affiliation:
Geosciences, Museum Victoria, GPO Box 666, Melbourne, Victoria 3001, Australia
I. E. Grey
Affiliation:
CSIRO Mineral Resources, Private Bag 10, Clayton South, Victoria 3169, Australia
*
*E-mail: smills@museum.vic.gov.au
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Abstract

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A new nomenclature scheme has been set up for the laueite supergroup of minerals, which have the general formula M12+ M23+ M33+(XO4)2(OH)2·8H2O, where M1 = Fe2+, Mg2+ or Mn2+; M2/M3 = Al3+ or Fe3+; and XO4 = PO4 or AsO4. The laueite supergroup is divided into the laueite group (XO4 = PO4) and the maghrebite group (XO4 = AsO4). These groups are then subdivided into subgroups on the basis of the dominant atoms, Al3+ or Fe3+, in octahedral sites M2/M3. The new nomenclature has been approved by the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification, proposal 14-F.

Keywords

laueite supergrouplaueitemaghrebitecrystal structuregroup nomenclature

Information

Type
Research Article
Information
Mineralogical Magazine , Volume 79 , Issue 2 , April 2015, pp. 243 - 246
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2015

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