Published On Apr 6, 2022
In fire assays you essentially dissolve the rock with a flux and use lead to collect the precious metals into a bead. In This video I try using an over the counter bismuth compound as a non toxic alternative.
show more
In fire assays you essentially dissolve the rock with a flux and use lead to collect the precious metals into a bead. In This video I try using an over the counter bismuth compound as a non toxic alternative.