Answer: ORE

AnswerCrossword Clue
OREBorax or galena
OREHopper's filler
OREIron or gold
OREMine output
OREPay dirt
ORERock group?
ORESourdough's find
ORETram load
OREAzurite or malechite
OREBauxite or galena
OREBauxite or pitchblende
OREForty-niner's paydirt
OREHopper load
OREIt's found in streaks
ORELode contents
OREMine material
ORENatural resource
ORENorthwestern st.
OREPiece of mine?
OREVein pursuit
orerock containing a valuable metal, also OWRE
OREMineral quest
OREContents of some pockets
OREForty-niner's quest
OREGalena, e.g.
OREGroundbreaklng discovery
OREHematite, e.g.
OREIt gets picked out
OREMetal source
OREMetalliferous rock
OREMine find
ORECinnabar
OREPiece of mine
ORESmeltery input
OREValleys
OREVein contents
OREVein glory?
OREWash. neighbor
OREBauxite, for one
OREBed contents