mə̇ˈlantəˌrīt noun
( -s )
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
: native copperas FeSo 4 .7H 2 O that is isomorphous with kirovite and pisanite