Calamine (mineral) enough was known of metallic zinc to make brass solder directly by combining copper and spelter (zinc ingots). In 1738 a patent was granted to William Champion, a Bristol brass founder, for the large-scale reduction of calamine to produce spelter. In 1684 a paper presented to the Royal Society touched on the medicinal and veterinary properties of the compound when in finely powdered form. Calamine (mineral) Calamine is a historic name for an ore of zinc. The name "calamine" was derived from "lapis calaminaris", a Latin corruption of Greek "cadmia (καδμία)", the old name for zinc ores in general. The
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"