Gold

The lead button, incomplete cupelation, the purple leaving the gold is copper oxide and the blues are cobalt oxide.

Six buckets of ball milled quartz ready for gold extraction.

Originally Posted by MaryWilliams

I want to do it, how is it in general, is it hard?

Excellent forum to guide you through your journey, https://goldrefiningforum.com/

I worked in the Homestake Gold Mine back in the mid 70s, when it was still there, I believe around 6000 working underground. Hell of a deal for a 21 year old who loved adventure.
I recently saw some photos of the town of Lead, about the only thing remained was the two huge ribs which held their barrels (about 60 ft diameter).
I once had some of the steel balls that were used in those barrels, even after they'd been worn out were still like small cannonballs