Assertion: bornite | /r/HasProperty | important copper ore mineral
Facets:
Source sentences:
text: Bornite is an important copper ore mineral.
text: Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite.
text: Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite.