Gold Fields pays $330m for Barrick mines AUSTRALIA is to become the biggest production centre for South Africa's Gold Fields after the group's $US300 million ($330m) acquisition of three gold mines in Western Australia from Canada's Barrick. The three mines -- Granny Smith, Lawlers and Darlot (the Yilgarn south Assets) -- give Gold Fields additional WA annual gold output of 452,000 ounces, 2.6 million ounces of reserves, and an extra 1.9 million ounces in the resources category. Gold Fields has long owned the St Ives and Agnew mines in WA.