Nā huahana
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Kūʻai a me ka hana hou ʻana i nā ʻōpala metala i hoʻopuehu ʻia
UrbanMins'Ua kālele ka poʻe noiʻi ʻenehana i nā metala i hoʻopuehu ʻia i loko o nā ʻōpala a ke noiʻi nei i ka hāʻawi ʻana i nā minelala, ke kahe waiwai, a me ka ʻenehana hana hou o kēia manawa o nā metala i hoʻopuehu ʻia mai nā minerala a i nā ʻōpala.ʻOi loa, no ka ʻenehana hana hou, ʻo kekahi mau ʻano hana e like me ke koho koho, ka hoʻololi ʻana i ka ion a me ka flotation, ka ua a me ka ʻenehana metallurgical vacuum etc.
