It can be found in some states in Nigeria in traces, small and huge deposits such as; Nasarawa, Kogi, Osun, Ekiti, Kwara, and Cross Rivers. Tantalite is the principal ore of tantalum. Tantalum has a symbol of Ta, melting point of 3,020 °C, and a boiling point of 5,457 °C. Tantalite is characterized as a black or brown mineral and is of 2 ...Web