leonite
noun
le·o·nite
ˈlēəˌnīt
plural -s
: a mineral K2Mg(SO4)2.4H2O consisting of a hydrous magnesium potassium sulfate occurring in monoclinic crystals
Word History
Etymology
German leonit, from Leo Strippelmann 19th century German director of salt works + connective -n- + German -it -ite