ˈräˌtīt, -ˌthīt noun
( -s )
Etymology: German rathit, from G. vom Rath died 1888 German mineralogist + German -it -ite
: a mineral Pb 13 As 18 S 40 consisting of a lead arsenic sulfide occurring in dark gray metallic orthorhombic crystals (hardness 3, specific gravity 5.4)