Sulphidic deposit associated with mafic/ultramafic intrusions.
The Carr Boyd Rocks tenements are located 80 km north-north-east of Kalgoorlie and cover an area of 67 square kilometres. They include the historic Carr Boyd nickel mine, which was operated by WMC until 1977 and subsequently re-opened by Defiance Mining NL. WMC mined the `breccia pipes' within the intrusive complex in the 1970s.
References:
Nickel Mineralisation In Western Australia by R.J. Marston, published by the GSWA 1984.
http://www4.geology.utoronto.ca/faculty/mungall/Website/igcp479pacific/dp91.html
38 entries listed. 35 valid minerals. 3 type localities (valid minerals).