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Placer Dome Copper-Gold Mine – Osborne – Queensland Australia

Producer of

Copper and gold

Location

195km southeast of Mt Isa, Queensland, Australia

Ownership

Barrick Gold Corp. (100%)

Geology type

Ironstone-hosted, replacement-type deposit

Mineral type

Chalcopyrite with associated gold and silver

Reserve base

5.9Mt proven and probable ore grading 2.2% Cu and 0.8g/t Au (2005)

Annual production

39,475t Cu and 43,000oz Au (2005)

Mining method

Underground open stoping

Processing method

Crushing, milling, gravity gold recovery, flotation

Employment

180

Underground

Caterpillar LHDs and mine trucks

Sandvik (Tamrock) drilling jumbos

Concentrator

Knelson gravity concentrator
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