drywashing

HELLO ALL: I have briefly reseaerched this forum but still have questions. First, I am building a small (12V battery powered) puffer. The bellows will move about 8 in. and will be driven by a rotating cam instead of a U joint and linkages. (May have to revisit the usual approach after some...

OK so today while prospecting in a 3 fault valley for a new hard rock mine.. we headed down to the floor and discovered Black sands 18" deep and knowing i should have taken pictures i didn't... ugg... anyhoo There is an insane amount of Pyrite in the field, also what looks like gold but with the...

I finally got it down.. (damned nitric acid!) anyhoo this is from 100 ML of fine ground pre-etched (nitric to remove copper tin etc), gold cubed, and panned ore. (the "Floating gold" we just jar) I have found a lot of ""nuggets"" but they all end up having a lot of ore attached to it.. to get...