check this out plv permit granted , page-13

wasn't sure - found something on the web about hematite iron ore being 5.2 which is what I used.

If they've got the possible 2km by 3km by 30m's they say could be there then the sg could be 1 and its still a monster!

Will be a long time of course before they can drill up to prove that sort of volume but just verifying the grades and purity of hardstaff pt and isthmus area would be a good start - which they can work towards now they've got the approval to explore.