The maths is not hard Rob, all you have to do is multiply out the grades by the percentages (1%=10,000ppm). Or an even quicker and more accurate way is to just look up the reported (average) grades per RE Element as shown in the Companies own drilling reports. In case you were unaware 1ppm = 1 gram per ton
Makuuta:
Dy 640ppm x 3.7/100 = 23.68 grams per ton of ore mined
Tb 640ppm x 0.6/100 = 3.84 grams per ton of ore mined
Which pretty much agrees with what I said earlier
Post #:78614670,
Now I don't know where you got your other data from, but it clearly contains errors, somebody is falsifying data, I wonder who that was?
Because ~ the reported %'s for LJ are 0.95% and 0.21%
Which agrees with the actual, measured grades for Longonjo (at a 2,000ppm TREO cut off) are
Dy 99.49 ppm ie grams per ton of ore mined
Tb 22.05 ppm grams per ton of ore mined
And Brown's Range
Dy 840ppm
Tb 120ppm
Perhaps it is time you went back to your sources and question them as to why they have been lying to you ?
(20min delay)