The Berne zinc pill is often a votive plaque dating to Roman Gaul made from an alloy that is generally zinc.[75] Mining was unmechanized and labor-intense, with pickmen releasing the ore from the rock, and mine-boys or carusi carrying baskets of ore into the floor, often via a mile or https://infrared-light-for-scope24678.suomiblog.com/5-simple-statements-about-infrared-zinc-sulfide-explained-43715967