When I was geo student they took us down the Broken Hill mine (the worlds biggest lead zinc silver deposit), looking up black glittering stopes (like a vertical chamber) 20 stories high of galena. It turns shitty and dull after a few days in the air, but when freshly exposed looks amazing.
Seems quite a positive little metallurgist
(, Fri 13 Aug 2021, 23:00, Reply)