Assertion: graphite | /r/ObjectUse | used as black pigment
Facets:
value: in microcrystalline
type: LOCATION
value: in nearly amorphous form
type: OTHER
value: mixed with clay
type: OTHER
Source sentences:
text: In microcrystalline and nearly amorphous form, it is used as a black pigment, as an adsorbent, as a fuel, as a filler for rubber, and, mixed with clay, as the “lead” of pencils.