Missing metals melted during Canadian coin production?

Canada's head-scratching puzzle as to where its "missing" precious metals disappeared to, worth an estimated $10 million, have long been suspected to be the result of some sort of error. Now it seems that the metals might be still be at the mint.

On June 11, the RCMP reported that the problem likely is a result of an error in a new computer system, although this possibility still has not been confirmed. The head of the Royal Canadian Mint defended security procedures, saying theft was highly unlikely. The new theory being floated now is that the Mint created more gold and silver coins last year than it normally does, producing some "90 tonnes of slag" in the process. The slag is now being examined. While the public does not know the full value of the "missing" metals, the value is believed to be somewhere around $10 million, possibly more. The RCMP was called in to help locate the unaccounted-for gold, silver and other precious metals earlier this month after an audit failed to locate the metals.