This is the sort of grades you need to find. http://www.asx.com.au/asx/statistics/displayAnnouncement.do?display=pdf&idsId=00969675
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch