pisanite
noun
pi·sanite
pə̇ˈzäˌnīt,
-zaˌn-
plural -s
: a mineral (Fe,Cu)SO4.7H2O consisting of a hydrous iron copper sulfate isomorphous with melanterite and kirovite
Word History
Etymology
German pisanit, from Félix Pisani †1920 French chemist and mineralogist + German -it -ite