Gold is the noble metals and has two effects is important.
First is shiny and corrosion resistance. Suitable for jewelry, coins, and aimed decor.
There is no need polishing is also beautiful.
Secondly, the characteristics of the gold benefit for industry and science.
In the past many years, there have been used in industrial applications.
Active by using it to protect for the heat in the astronauts’ suits.
So , it is not only beautiful, but also useful.