Slammin- That 7th picture looks like slag from the smelter, the leftover after you melt out the gold and silver. Looks like they may not have gotten all of the silver, since there is a small metallic button between the thumb and index finger. I think that unless they are adding various chemical fluxes to the smelt, they'll leave behind much of the silver as oxides and sulfides, which is why the dore bars are primarily gold even though WEM ores tend to have much more silver than gold by weight. They may need a harder to get permit to add the chemical fluxes. So they'll probably save the slags to recover the rest of the silver at another time.