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Native nickel from the Jerry River, South Westland, New Zealand: an example of natural refining

Published online by Cambridge University Press:  05 July 2018

G. A. Challis
G. A. Challis*
Affiliation:
New Zealand Geological Survey, P.O. Box 30368, Lower Hutt, New Zealand
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Summary

Native nickel of composition Ni 96.3 %, Fe 1.77 %, and Co 0.69 % was found as tiny flakes up to 0.75 mm across in a heavy mineral concentrate from stream sediments in the Jerry River, South Westland, New Zealand. The locality is approximately 13 km downstream from the original locality for awaruite (Ni2Fe), and it is shown that the nickel content of detrital grains increases with distance from the source of the awaruite in serpentinites of the Red Hills Range. It is proposed that the native nickel has been derived from awaruite by leaching of iron.

Type
Research Article
Information
Mineralogical Magazine , Volume 40 , Issue 311 , September 1975 , pp. 247 - 251
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1975

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