Spelter been used since about the 1860s to make statues, tablewares, and lamps that resemble bronze. Spelter is soft and breaks easily. To test for spelter, scratch the base of the piece. Bronze will appear as bright yellow while spelter will show a silvery scratch. The word "pewter" is thought to be derived from the word "spelter". Zinc ingots formed by smelting might also be termed spelter. Spelter Spelter, while sometimes used merely as a synonym for zinc, is often used to identify a zinc alloy. In this sense it might be an alloy of equal parts copper and zinc, i.e.
Nth metal mineral causes whatever is irradiated with it to float and defy gravity, like in the comics. The Nth Element is used in Hawkman's equipment, and Black Mask attempts to use it for a bank heist. In "", Batman uses Nth metal brass knuckles, handcuffs, as well as batarangs, to fight and capture Gentleman Ghost. Green Arrow is shown to have Nth metal tipped arrows. As shown in the animated "Justice League", Nth metal can be used against supernatural beings, but is vulnerable to direct magical spells, as is seen when Equinox mystically melts Batman's Nth metal handcuffs. In "The Flash"