Assertion: sulfide mineral | /r/HasProperty | important
Facets:
value: economically
type: DEGREE
value: as metal ores
type: OTHER
Source sentences:
text: Many sulfide minerals are economically important as metal ores; examples include sphalerite (ZnS), an ore of zinc, galena (PbS), an ore of lead, cinnabar (HgS), an ore of mercury, and molybdenite (MoS 2 , an ore of molybdenum.