Get a proper assay.Hello, I am sorry, yes Fe is iron and the reason I roast at 600 C for 10 or 20 minutes is to turn the sulfides to oxides. There is pyrite in this ore that is magnitized after the process.I was told around 34 ppm (parts per million) is 1 opt (ounce per ton) and the percentage of AU (gold) in the sample was around 2 opt and it was after a roasting I am not understanding, I think I am ow my own now yggdrasil said nobody does what I am trying to do and I should go to the hospital because I am going to kill myself. Thanks for th help.
Then you will know if the high Arsenic content is true or an artefact of the XRF.
In light of being one of the most toxic elements we can encounter in ores and you have dissolved it making it even more potent.
I would have checked with the doctor in any case.
1 part per million means just that.
1 gram per million gram or one pound per million pounds.
So 34 is slightly over 1 Ozt per 1000Kg