Crystallization of chromite from nickel-iron sulphide melts |
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| Authors: | W E Ewers J Graham D R Hudson J M Rolls |
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| Institution: | (1) Division of Mineralogy, CSIRO, 6014 Wembley, Western Australia;(2) Environmental Project Unit, Queensland Inst. of Technology, 4000 North Quay, Queensland |
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| Abstract: | An experiment, in which an iron-nickel-copper sulphide melt was heated with synthetic chromite and then cooled, showed that substantial quantities of chromite had dissolved in the melt and had then recrystallized as euhedral crystals rimmed with magnetite. This experiment suggests that the unusual chromite (low in Mg and Al) which is associated with the sulphide phase in Western Australian nickel ores may have formed in a similar way.J.M.R. carried out the experimental part of this investigation as a post-graduate student at Flinders University, South Australia, working under a CSIRO extramural grant. |
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