Gold and iron are types of metals, while bronze is a metal alloy.
usually iron, gold and bronze
There are many different types of metal in the world. Some of the most common types are silver, gold, bronze, iron, steel and brass.
Different metals are Platinum. Gold. Silver, or silver-gilt, which is in fact used for Olympic “gold medals” Bronze. Pewter. Copper. Tin. Iron.
There have been times when iron was more valuable than gold. Most bronze age civilizations valued iron more highly than gold, as it was both rarer (iron ore is common, naturally occurring pure iron is not) and more useful (iron is significantly stronger than bronze, and much, much stronger than gold).
Gold, Silver, Bronze
That depends on when you read this text.
Gold, Silver, Bronze, Heroic, and Iron Ages
Bronze nickel iron steel and gold
Gold, Silver, Bronze, Heroic, and Iron.
Gold, Silver, Bronze, Heroic, and Iron.
copper , iron, steel, aluminium, bronze silver gold
Iron - the rest are metals used in olympic medals.