The Tucson Ring meteorite is an iron meteorite identified as a fragment of the rare brezinaite type. Reports say it was one of several masses of native iron found at the foot of the Sierra de la Madera and brought to the plaza of Tucson, Arizona, around 1850. In Tucson, it entered daily life in a practical way, serving as an anvil in a blacksmith's shop. Its significance lies in being both an uncommon type of meteorite and an object that moved from a natural find into ordinary community use.