hmmm - I think I agree with Henry on this one... strangely enough.
The problem is that minerals are set by international prices - not local. So - the miners take a hit, but can not pass on the costs.
What the miners WILL do though is start to look at greater efficiency, and also look offshore for better opportunities. So, we will have less people in work, and due to increased competition for jobs, lower wages.
Also from the above, probably smaller and/or less secondary industries, etc.