ˈakˌmīt noun
( -s )
Etymology: German achmit, from Greek akmē + German -it -ite
: a mineral consisting of a brown or green silicate of sodium and iron NaFe(SiO 3 ) 2 belonging to the pyroxene group and often found in long prismatic crystals characteristically pointed (hardness 6-6.5, specific gravity 3.50-3.55) — called also aegirite