ˌfeˌrīˈnā.ˌtrīt, ˌferēˈ- noun
( -s )
Etymology: alteration (influenced by ferri ) of ferronatrite, from ferro- + natron + -ite
: a mineral Na 3 Fe(SO 4 ) 3 .3H 2 O consisting of a greenish or white sodium ferric iron double sulfate usually occurring in spherical forms