Cobalt

Cobalt is a transition metal that is classified as a hard, brittle, and silver-gray element. It has a high melting point and magnetic properties, and is often used in alloys with other metals to improve their strength and durability. Cobalt is also an important component in a variety of electronic devices, such as rechargeable batteries for electric vehicles and mobile phones. Additionally, cobalt is used in the aerospace industry for jet engine parts, and in the medical industry for prosthetic devices such as hip replacements. Cobalt is naturally found in the Earth’s crust, but is mainly extracted as a byproduct of copper and nickel mining.