Tantallon, that is one of many that a simple google search turned up. In most cases, GN has said that the cost of mining was around $3.50 to $4.00. That is why I believe that he may have indeed been misquoted by the Star, but I have no proof of that.
The more important line to me in the Star article is that LBE makes money at $7.
Cheers,
Bluenoser