BG
Gee...Would take me a couple of days to properly address your questions but here goes in brief:
1) There is no minimum. One operation I knew well produced no zircon.
2) Water!
3) Seriously,why do you ask?
4) Thats not really a valid question. The viability of any operation depends on a balance of a range of issues.
5) Very! Known as stripping ratios. 100m....now that would be a world record.
Do you work for IMA? :)
Cheers
Sandminer
