Black corundum, eo hape e tsejoang e le low alumina corundum, e ka sebōping sa arc, e qhibilihisa bauxite 'me e entsoe ka mofuta oa α-Al2O3 le tšepe spinel e le karolo e ka sehloohong ea diminerale ea kristale e bohlooho e ntšo, e khetholloang ka litaba tse tlaase tsa Al2O3, le palo e itseng ea Fe2O3 (10% kapa ho feta), boemo bo phahameng ba mocheso, boemo bo phahameng ba mocheso, ho hanyetsa boemo bo phahameng, ho hanyetsa maemo a phahameng. Haholo-holo e sebelisoang bakeng sa ho sila mahala, joalo ka ho sila ka thata pele ho lihlahisoa tsa electroplating, haholo-holo tse sebelisetsoang tšepe e sa hloekang, lihlahisoa tsa tšepe, khalase ea optical, bamboo le lihlahisoa tsa lehong ho bentša le sandblasting, hape ke moetsi oa lebili le silang la resin, likotoana tse sehang, lesela la emery novel abrasive.
Nako ea poso: Apr-11-2023