freieslebenite
noun
frei·es·le·ben·ite
¦frīəs¦lābəˌnīt
plural -s
: a mineral Pb3Ag5Sb5S12 consisting of a gray metallic-looking sulfide of antimony, lead, and silver
Word History
Etymology
German freieslebenit, from Johann K. Freiesleben †1846 German mineralogist + German -it -ite