The Pentlandite Group (Fe,Ni,Co)9S8: New data and an Appraisal of Structure-Composition Relationships

John F. Riley
Technical Services Department, Mount Isa Mines Limited, Mount Isa, Queensland, Australia, 4825

Summary: Analyses are presented for an iron-rich pentlandite associated with native copper and troilite from New Zealand and three cobalt-bearing pentlandites from Australia. Examination of 141 published analyses indicates that pentlandites, regardless of their Co content, can be classified on the basis of cell size, Fe content, Fe:Ni ratio, and the sulphide assemblage in which they occur. The cobaltian varieties show two separate trends.

Mineralogical Magazine; September 1977 v. 41; no. 319; p. 345-349; DOI: 10.1180/minmag.1977.041.319.05
© 1977, The Mineralogical Society
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