hat
Nuummite se anjeneral nwa nan koulè ak opak. Li konsiste de de anfibòl, gedrite ak anthophyllite, ki fòm lsulans exsolution ki bay wòch la iridesans tipik li yo. Lòt mineral komen nan wòch la se pyrite, pyrrhotite ak chalcopyrite, ki fòm chatwayant Gwoup jòn nan espesimèn poli.
eng
Nuummite is usually black in colour and opaque. It consists of two amphiboles, gedrite and anthophyllite, which form exsolution lamellae that give the rock its typical iridescence. Other common minerals in the rock are pyrite, pyrrhotite and chalcopyrite, which form shimmering yellow bands in polished specimens.