I-Flake graphite iyi-crystal graphite yemvelo, ukuma kwayo kufana ne-fish phosphorus, i-hexagonal crystal system, isakhiwo esinezingqimba, inokumelana okuhle nokushisa okuphezulu, ugesi, ukushisa ukushisa, ukuthambisa, ipulasitiki ne-asidi kanye nezakhiwo zokumelana ne-alkali.