Not sure about impurities Magix, however I'm assuming that the Yandi deposits were primarily formed from eroded Marra Mamba BIFs, which typically have low concentrations of phosphorus (< •1%). Si + Al will more than likely be a few percent higher than Railway, albeit I doubt any serious beneficiation work will be necessary.
I would also expect to see LOI levels at the higher end of scale (~10%), which will certainly assist in maintaining the Fe levels to medium grade ore.
I must say that I'm quietly confident that Yandi Headwaters will more than likely be an attractive addition to our iron ore portfolio.
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