Assertion: graphite | /r/AtLocation | high enough concentrations
Facets:
Source sentences:
text: When graphite is in high enough concentrations, these rocks can be mined, crushed to a particle size that liberates the graphite flakes, and processed by specific gravity separation or froth flotation to remove the low-density graphite.
text: When graphite is in high enough concentrations these rocks can be mined, crushed to a particle size that liberates the graphite flakes and processed by specific gravity separation or froth flotation to remove the low density graphite.