ʻEleʻele a ʻeleʻele paha ka ʻōpala keleawe, he ʻōlinolino metala ka ʻili, he vitreous ke ʻano o loko, he paʻakikī, paʻakikī a palupalu ke ʻano, a ʻoi aku ka paʻakikī o ka hoʻohuihui kemika. Mai ka ʻike keleawe o kekahi i loko o ka pae keleawe ʻilihune (Cu <1%), kekahi i loko o ka pae keleawe waena (Cu1 ~ 2%), kekahi i loko o ka pae keleawe waiwai (Cu> 2%), ʻoi aku ka kiʻekiʻe o ka ʻike FeSi02, CaO, AL203, e helu ana ma mua o 60% o ka slag, ʻo ka hapa nui o ka hoʻohuihui mineral o ka peridotite hao, ukali ʻia e ka magnetite, aia kahi helu liʻiliʻi o nā veins i haku ʻia me ke kino vitreous.
Ua hoʻomohala a ua akamai ʻo Xiye i ka ʻenehana o ka mālama ʻana i ka ʻōpala keleawe ma o ke ʻano electrothermal, ka mea e pale ai i ke kaiapuni, hana hou i nā ʻōpala paʻa a hoʻolilo i ka ʻōpala i waiwai.
Hoʻohana ka ʻenehana hana i ka umu uila kūikawā i hoʻomohala ʻia e Xiye kūʻokoʻa, a hoʻohana i ke kaʻina hana hoʻouka kūikawā, e hoʻokō pono ana i ka ʻenehana o ka mālama ʻana i ka slag tailing keleawe e ka umu uila mua ma Kina.
