RE: stockbox out24 Aug 2021 10:42
http://www.portergeo.com.au/database/mineinfo-mb.asp?mineid=mn174
'ii). Massive sulphides found principally on the lower contact of the mineralised sills, both within the enclosing rocks and to a lesser degree the sill, and are often separated from the sill by several metres of barren sediment or cupriferous mineralisation. Sometimes they are also found on the upper margin of the sill. In other locations the massive sulphides cut across the sill to its upper margins. The massive sulphides are divided into either pyrrhotite, cubanite or chalcopyrite types, depending on the dominant sulphide, with associated pentlandite moihoekite and talnakhite. Individual massive sulphide bodies may be up to 60 m thick as at Oktyabr'sky where it cover an area of 3.5 sq km. Grades vary drastically with the sulphide assemblage, but are of the order of 2.8% Ni, 5.6% Cu and 15 g/t PGE.'