səˈmärˌskīt, ˈsamər- noun
( -s )
Etymology: French, from Col. von Samarski 19th century Russ. mine official + French -ite
: a velvet-black commonly metamict orthorhombic mineral with splendent vitreous or resinous luster consisting of an oxide of rare earths, uranium, iron, lead, thorium, columbium, tantalum, titanium, and tin — compare hjelmite