I went down the rabbit hole of the #chemistry of historic #copper ore processing in smelters. Found this very detailed explanation by a rather sassy author who provided incredible details on the subject.
https://www.reddit.com/r/geology/comments/o2tuoa/i_went_down_the_rabbit_hole_of_the_chemistry_of/

https://www.tf.uni-kiel.de/matwis/amat/iss/kap_a/backbone/ra_1_3.html

#Geology