ʻAʻahu ʻulaʻula corundum, i ʻike ʻia ʻo adamantine, he mea corundum i hana ʻia mai ke kiʻekiʻe abrasive grade bauxite ma ke ʻano he kumu kumu, i hoʻomaʻemaʻe ʻia i loko o kahi umu wela wela ma mua o 2250 ℃. Loaʻa iā ia nā waiwai maikaʻi loa e like me ka paʻakikī kiʻekiʻe (ka paʻakikī o 9, ka lua wale nō i ka diamod), ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa kiʻekiʻe o ka lole, ka paʻakikī kiʻekiʻe, a me ka paʻa ponoʻī a me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, ka mea e hana ai i nā abrasives brown corundum i kahi ākea o nā noi i ka helu o nā kahua ʻoihana.
ʻOiaʻiʻo,nā mea abrasive corundum brownhiki ke hoʻohana ʻia e hana i nā mea hana abrasive ākea, e like me ka wili ʻana i nā huila, nā pōhaku ʻaila, nā poʻo abrasive, nā pōhaku lepo, a me nā mea ʻē aʻe, a hiki ke hoʻohana ʻia no ka wili ʻana a me ka polishing o nā metala, keramika, aniani a me nā mea paʻakikī kiʻekiʻe. Eia kekahi, hoʻohana ʻia nā micropowders brown corundum e like me nā metallurgical deoxidisers a me nā mea pale wela kiʻekiʻe, ʻoiai hoʻohana ʻia nā kristal hoʻokahi maʻemaʻe kiʻekiʻe i ka hana ʻana i nā mea kūloko no nā semiconductor a mecorundum ʻeleʻelenā pulupulu. I loko o nā ʻōnaehana kemika, hoʻohana ʻia ka corundum brown e like me nā kīʻaha pane, nā paipu a me nā ʻāpana pahū kemika ma muli o kona kūpaʻa maikaʻi a me nā waiwai ikaika. Hoʻohana nui ʻia ʻo ia ma ke ʻano he mea hana ʻenehana i ka photovoltaic solar, semiconductor, a me nā ʻoihana kristal piezoelectric, a me ke kūkulu ʻana i nā paia multifurnace kiʻekiʻe a me nā hale.
Ke kaʻina hana onā mea abrasive corundum brownaia kekahi mau ʻanuʻu, me ke koho ʻana i nā mea maka, ka ʻohi ʻana, ka wili ʻana, ka hui ʻana a me ka hoʻoheheʻe ʻana, ka pyrometallurgy, ka hoʻoluʻu a me ka ʻoki ʻana, ka nānā ʻana a me ka hoʻopili ʻana, pono e mālama pono ʻia kēlā me kēia mea e hōʻoia i ka maikaʻi a me ka hana o ka huahana.
