Mineral
Ore.
Ore
ore
ore.
Ore
lode
Ore is a three letter word and is a mineral that contains metal that is valuable enough to be mined.
ore
lode
lode
The word Mollusk is a 7 letter word.
Doing a crossword? :Pi think the real name for lead ore is Gelena compound-PbS(So maybe the word is Gelena)