ROESSLERITE

ˈresləˌrīt, ˈrə(r)s- noun

( -s )

Etymology: German rösslerit, from Karl Rössler, 19th century resident of Hanau, Germany + German -it -ite

: a mineral MgH(AsO 4 ).7H 2 O consisting of a hydrous acid arsenate of magnesium