The Super Pit in Kalgoorlie is no longer the nation's largest gold producer, after its output dropped to its lowest level in four and half years.
A range of technical, transport and unplanned shutdown issues hit Australia's biggest mining companies, with gold production dropping across the board.
Only 62 tonnes of gold was produced nationally in the September quarter of 2012, almost five tonnes less than in the same quarter last year.
Sandra Close, a director of Surbiton which is a mining consultancy firm, says it is unfortunate to see numbers drop.
"It is disappointing because quite a few new operations are coming onstream," she said.
"Several of the larger gold mines particularly had technical issues and that reduced their gold output.
"I suppose the stand out one was Super Pit because their production was down 42,000 ounces, which is considerable." Barrack-Newmont's Kalgoorlie Super Pit in WA's Goldfields lost its number one spot to Newmont's Boddington mine.
Ms Close says this lull has not deterred foreign investors.
"We're still seeing considerable interest in the Australian gold industry and in fact the mining industry and the whole resources industry," she said.
"And, you've really got to ask yourself why overseas investors seem to value so many of our assets far more than Australians do?"