Tamahagane is a traditional Japanese steel made from iron sand, known for its high quality and unique properties. It is produced through a smelting process in a clay furnace called a tatara, where iron sand is heated with charcoal. This method results in a steel that is both tough and flexible, making it ideal for crafting samurai swords and other tools. The production of tamahagane is labor-intensive and requires skilled artisans. The steel is often characterized by its layered structure, which enhances its strength and sharpness. Tamahagane is not only valued for its practical uses but also for its cultural significance in Japanese craftsmanship.