Assertion: pyrite | /r/HasProperty | heaped
Facets:
Source sentences:
text: Iron pyrite was heaped up and allowed to weather (an example of an early form of heap leaching).
text: Iron pyrite was heaped up and allowed to weather (an example of an early form of heap leaching).
text: Iron pyrite is heaped up, weathered, and the acidic runoff from the heap is boiled with iron to create the copperas.
text: Iron pyrite was heaped up and allowed to weather as described above (an early form of heap leaching).