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.
Tenacity (mineralogy)
Malleability:
The mineral may be pounded out into thin sheets. Metallic-bonded minerals are usually malleable.