: Adjectis synonymis et veteribus et recentioribus ac novissimarum analysium chemicarum summis. Systematis mineralium naturalis prodromus. OCLC 995480390. ^ a b Mining was unmechanized and labor-intensive, with pickmen liberating the ore from the rock, and mine-boys or carusi carrying baskets of ore towards the floor, often through a mile https://codyhxkxh.daneblogger.com/27715797/an-unbiased-view-of-zinc-sulfide