I-Brown jade, igama eliqhelekileyo likwabizwa ngokuba yisanti yedayimane, yindoda emdaka efakwe kwi-alumina, imathiriyeli yekhabhoni, kunye nezinto ezintathu ezinyibilikayo ezinyibilikayo kwaye zincitshiswe kwiziko lombane le-arc, lilo ke eli gama.Izithako eziphambili zeekhemikhali ze-jade emdaka ziyi-Al2O3, kwaye umxholo wayo ngu-95.00% -97.00%, kwaye kukho enye imali encinci ye-Fe, Si, Ti, njl. elungileyo, uluhlu lwesicelo olubanzi, luncinci, kwaye lusetyenziswa ngokubanzi.
Ijeyidi emdaka yeyona nto iphambili ekrwada ngealuminiyam, icoke (anthracite), kwaye inobushushu obuphezulu bokunyibilika kwiziko lombane le-arc.Kufanelekile ukugaya isinyithi esiphakamileyo, njengentsimbi eyahlukeneyo jikelele., Ngaba iyakwazi ukwenza intsimbi yentsimbi, ubhedu oluqinileyo, njl.I-brown grungy ineempawu zokucoceka okuphezulu, i-crystallization elungileyo, ulwelo oluqinileyo, i-coefficient yokwandisa ucingo oluphantsi, kunye nokumelana nomhlwa.Ngabaninzi abavelisi abachasene nomlilo, imveliso ineempawu zokuqhuma, akukho powdering, kunye nokungaqhekezi kwisicelo.Ngokukodwa, iphezulu kakhulu kuneendleko-zokusebenza kwe-jasteas emdaka yendabuko, eyenza ibe yi-aggregate engcono kunye nokuzaliswa kwezinto ezinqabileyo ze-jade refractory.