Found 18 Gold CC0 textures in library

Gold

Gold Texture 1

Golden Black 1

Golden Black 2

Golden Black Marble

Golden Black Polished Marble

Golden Onyx 1

Metal 007

Metal 034

Metal 042 A

Metal 042 B

Nero Gali Marble

Old Gold

Portoro Gold Black Marble

Portoro Golden Marble

Portoro Golden Marble 2

Wallpaper 41

Wallpaper Texture Seamless 14