Ferroan Carrollites, Cobaltian Violarites, and Other Members of the Linnaeite Group: (Co,Ni,Fe,Cu)3S4

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

Summary: Electron microprobe analyses and X-ray data are given for iron-rich carrollites, cobaltian violarites, and other members of the linnaeite group. The iron-rich carrollites (8.5 wt% Fe) occur as an unmixed phase in a copper linnaeite host from the Zambian Copperbelt. Primary and secondary cobaltian violarites are reported from Rhodesia and Australia respectively with the latter recording up to 19.2 wt% Co. A diagrammatic review is given of the extremes of composition reported within the group together with the more reliable cell sizes.

Mineralogical Magazine; June 1980 v. 43; no. 330; p. 733-739; DOI: 10.1180/minmag.1980.043.330.06
© 1980, The Mineralogical Society
Mineralogical Society (www.minersoc.org)