text: Palladium is a rare silver-white metal of the platinum group. It's extracted from copper and nickel ores. It is primarily used as an industrial catalyst and in jewelry.\nThe only country that uses palladium to make it's actual coins is the country of Tonga, but other countries use it in their commemorative coins. \nAs for the others that you list, the first word is the name of the country and the second word is the word used to describe that countries currency...such as "United States dollar" or "Mexican peso".