molybdomenite
/məˌlɪbdəˈmiːnʌɪt/Mineralogy
noun
A monoclinic oxide of lead and selenium occurring as thin colourless to yellowish-white scales.
Origin
Late 19th century; earliest use found in The Encyclopedic Dictionary. From French molybdoménite from ancient Greek μόλυβδος lead + μήνη + French -ite.