Assertion: zinc | /r/HasProperty | extracted as a co-product
Facets:
value: in some cases
type: TEMPORAL
value: along with these other metals
type: OTHER
Source sentences:
text: In deposits mined today, zinc ore (rock containing economic content of zinc and/or other materials) commonly also contains lead, silver and, in some cases, copper, and the zinc is extracted as a co-product along with these other metals.