What is tantalum also called coltan used for

Tantalum, also known as coltan, is primarily used in the electronics industry, specifically in the manufacturing of capacitors, high-power resistors, and certain types of semiconductors. It is a critical component in many electronic devices such as smartphones, laptops, tablets, and video game consoles. Tantalum is valued for its high melting point, corrosion resistance, and ability to store and release electrical energy efficiently.