ˈplājēəˌnīt noun
( -s )
Etymology: German plagionit, from Greek plagion, neuter of plagios oblique + German -it -ite — more at plagal
: a mineral Pb 5 Sb 8 S 17 consisting of a lead antimony sulfide of a blackish lead-gray color and metallic luster (sp. gr. 5.4)