ˈdānəˌlīt noun
( -s )
Etymology: James D. Dana died 1895 American geologist + English -lite
: a mineral (Fe,Zn,Mn) 8 Be 8 Si 6 O 24 S 2 that consists of a reddish or gray silicate and sulfide of iron and beryllium usually containing also zinc and manganese and that is isomorphous with helvite and genthelvite