Mea culpa!!!! What a difference a Zero can make. In my previous post instead of 0.70% and 0.36% of Cu, I, inadvertently wrote 70% and 36% Cu(!!!!).
It would have been very nice and acceptable Lab results by all, had the Copper content % been 70% and 36% Cu.
Such a lapsus calami! Almost inexcusable........
Cheers;))