Stuarolite or Staurolite: How To spell?

The word Stuarolite is misspelled against Staurolite, a noun meaning "A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also granatite, and grenatite."