Insimbi engahluziwe ye-cobaltite (CoAsS) — iminerali emhlophe okwesiliva kuya kokumpunga equkethe i-cobalt, i-arsenic ne-sulfur. Yinsimbi engahluziwe eyinhloko ye-cobalt, futhi kusukela endulo isetshenziselwe ukunika ingilazi nobumba umbala oluhlaza ojulile (i-smalt, okuluhlaza kwe-cobalt). Zombili izinhlanganisela ze-arsenic nezase-cobalt zinobuthi — ziphathwe ngesivikelo sokuphefumula.