Gold: Symbolical
Source: Nav
Daniel 2:32–45
The head of the statue was pure gold, its chest and arms were silver, its belly and thighs were bronze, / its legs were iron, and its feet were part iron and part clay. / As you watched, a stone was cut out, but not by human hands. It struck the statue on its feet of iron and clay, and crushed them.
Revelation 21:18, 21
The wall was made of jasper, and the city itself of pure gold, as pure as glass. / And the twelve gates were twelve pearls, with each gate consisting of a single pearl. The main street of the city was pure gold, as clear as glass.