The metal extracted from cassiterite is tin. Cassiterite is a mineral composed of tin dioxide (SnO2), and it is the primary ore of tin. Tin is a silvery-white metal that is commonly used to coat other metals to prevent corrosion. It is also used to make alloys, such as bronze and pewter, and is an important component of solders. Tin has a low toxicity, which makes it suitable for use in food packaging and other applications where contact with humans or animals is possible.