( n. )
A nearly opaque white mineral, in part identical with titanite, observed in some igneous rocks as the result of the alteration of titanic iron.
( n. )
A nearly opaque white mineral, in part identical with titanite, observed in some igneous rocks as the result of the alteration of titanic iron.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012