Assertion: zinc's ore | /r/HasProperty | ground
Facets:
value: finely
type: DEGREE
Source sentences:
text: The ore is finely ground, then put through froth flotation to separate minerals from gangue (on the property of hydrophobicity), to get a zinc sulfide ore concentrate consisting of about 50% zinc, 32% sulfur, 13% iron, and 5% SiO