Etruscan jewelry
The combination of metals was a basic technique. Essentially, there is no such thing as 24 carat gold jewelry. Massive gold is the most malleable metal. It is almost like wax. In order to have jewelry that can pass the test of time and gravity, the Etruscans had to combine their gold with other metals.
Metal furniture
Wrought iron is good for garden furniture, providing a classic look. However, it is heavy, which is a challenge, but appreciated on windy days. It needs much care, though, and can easily rust and corrode if not waterproofed. Aluminum is more common than steel furniture, mostly because it does not rust, although it oxidizes, turning into a chalky white. It is also lighter than steel, making it more desirable. Cast and heavy tube aluminum give better quality. Aluminum has to be thicker than steel if it is to have as much strength. Tubular aluminum is flexible and hollowing, besides less sturdy. However, its lightness makes for an ideal poolside furniture and is mainly used for benches, folding chairs and swing sets.