melanterite
noun
me·lan·ter·ite
mə̇ˈlantəˌrīt
plural -s
: native copperas FeSo4.7H2O that is isomorphous with kirovite and pisanite
Word History
Etymology
German melanterit, from French mélantérie melanterite (from New Latin melanteria, from Greek melantēria pigment used for blacking shoes, from melan- + tērein to watch, preserve, keep + -ia -y) + German -it -ite