Norilsk Nickel Australia Pty. Ltd., a subsidiary of Russian miner Norilsk Nickel, has agreed to sell its Northeastern Goldfields Operations in Western Australia to Saracen Metals Pty. Ltd. The A$40 million deal includes the open-pit Thunderbox gold mine and processing facility. Norilsk acquired Thunderbox when it bought Lionore Mining in 2007 and placed it on care and maintenance later that year.