Assertion: chalcopyrite | /r/HasProperty | a copper iron sulfide mineral
Facets:
Source sentences:
text: Chalcopyrite ( KAL-ko-PY-ryt) is a copper iron sulfide mineral that crystallizes in the tetragonal system.
text: Chalcopyrite is a copper iron sulfide mineral, and its chemical formula is CuFeS 2.This mineral is naturally presented in a variety of ores; from huge masses to irregular veins