Well, surprised no -one picked up the gearing error in the calc! Of course the calc is a bit rubbery but the biggest problem is the Carats/ton - CFR reported 8 cts/100t not per ton.
It changes the results dramatically, however it is compensated to a degree by the area involved - its probably much, much greater (sq Km, rather then just metres) and the cost to process the ore is probably more like $10/t, npt $50/t.
GL to punters.
