For lead, the primary ore is galena or lead (II) sulfide (PbS). Galena is a naturally occurring semiconductor, crystals of which lent their name to the early “crystal radios” which used a lump ...
Geologists in Western Australia have uncovered the largest iron ore deposit ever recorded—an astonishing 55 billion metric ...
Mined in Derbyshire and smelted during a period of Roman occupationGalena, the ore of lead, was mined in Derbyshire from the Bronze Age. Romans worked lead ore in Derbyshire where it was smelted ...
Sophomore guard Jackson Shelstad scored 16 points to lead No. 9 Oregon to an 89-49 victory over Weber State on Sunday.