Indicators on zinc sulfide You Should Know
: Adjectis synonymis et veteribus et recentioribus ac novissimarum analysium chemicarum summis. Systematis mineralium naturalis prodromus. OCLC 995480390. ^ a bMining was unmechanized and labor-intense, with pickmen freeing the ore with the rock, and mine-boys or carusi carrying baskets of ore to your floor, generally by way of a mile or more of