Assertion: pyrite | /r/HasProperty | principal mineralizer
Facets:
value: in the quartz
type: LOCATION
value: with occasional pockets of galena
type: LOCATION
Source sentences:
text: level, the iron-minerals were largely oxidized and some free gold was visible; below that level few traces of oxidation occurred, and pyrite constituted the principal mineralizer in the quartz, together with occasional pockets of galena and a few eccentric specks of covellite.