Isoferroplatinum Occurrences in Australasia New Zealand Maud Creek, Howard Valley - Railton, G.L. et al (1990) - From alluvial sands with platinum Near mouth of Borland River, Waiau Valley - Railton, G.L. et al (1990) Round Hill, near Orepuki - Railton, G.L. et al (1990) Waikawa - Railton, G.L. et al (1990) - From beach