IPA: /kəˈlʌmˌbaɪt/
KK: /kəˈlʌmˌbaɪt/
A type of mineral that is mainly made of iron and niobium, often found in black or red-brown colors, and is the main source of niobium.
Columbite is an important mineral used in the production of niobium for various industrial applications.
Columbite is derived from 'Columbia' (the historical name for the United States, often used to refer to the country or its personification) and '-ite' (a suffix used in mineralogy to denote minerals or rocks). The word refers to a mineral that contains niobium, which was named after the country of Columbia.
Think of 'Columbia' as the place associated with this mineral, and remember that 'columbite' is a mineral named after that location.