Goldsmith
A goldsmith might have a wide array of skills and knowledge at their disposal. Gold, being the most malleable metal of all, offers unique opportunities for the worker. In today's world a wide variety of other metals, especially platinum alloys, also may be used frequently. 24 karat is pure gold and historically, was known as fine gold.
Tenacity (mineralogy)
Malleability:
The mineral may be pounded out into thin sheets. Metallic-bonded minerals are usually malleable.