Zinc Discovery in Arizona
looks like “Bre-X”
snip
13376ppm
Manganese clogs up smelters, sticking to anodes and tanks, which have to be emptied and cleaned if they are processing manganese-heavy material. The upshot: too much manganese in with your zinc and the product isn’t viable. Anything above 0.4 per cent and a company faces penalties, paying extra to process its tonnage. Anything above 0.7 per cent and it’s probably a showstopper.
On page 94 of the company’s 113-page resource estimate, which was published in October, Taylor’s concentrates were “analyzed for smelter-penality elements [sic]”, with manganese coming in at 13376ppm, equal to 1.3 per cent. “Their material is not actually saleable,” says one banking analyst, who previously worked at one of the world’s largest metal traders. “Nowhere does [the company] mention this as a potential issue.”
Analysts at three separate banks said that manganese levels of 1.3 per cent are unworkable. There are “likely to be some high penalties for that sort of quantity in a concentrate. Probably not too many smelters who could take it so they’re likely to be over a barrel.”
http://www.globalminingobserver.com/zinc-discovery-arizona-looks-like-bre-x-172