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Wide zones of high grade copper sulphide mineralization have been discovered at depth below the Blackard native copper resource at Roseby during recent drilling by Xstrata Copper, as part of the Sulphide Extension Exploration Project.
The programme, which was designed to test the Blackard and Legend deposits at depth, intersected multiple zones of high grade copper on three section lines within a strike length of 450 metres at Blackard. Drilling also confirmed the continuity of copper sulphide mineralization along the south-easterly strike extensions of the Legend resource, locating low to average grade intersections in two of the three holes.
Drilling of the sulphide zone, underlying the central portion of the Blackard native copper deposit, located a new broad zone of copper sulphide mineralization (94 metres at 0.93% copper), hosting three discrete high grade copper lenses. Sulphide mineralisation of this grade and at this depth was not previously known on this section and similar untested sections immediately to the north and south now require deep drill testing for comparable mineralization. Blackard drilling highlights are provided in the announcement. – Press Release