Both the silver standard and bimetallism have been more common than the gold standard.
Tying complex multi faceted economies to the physical abundance of specific raw materials fails to capture the full value of activities and assets.
The true gold standard was a blip from the 1870s to the early 1920s.
In any case gold served as a strong check on monetary policy even if it had problems. Certainly it is possible to have a "sound" monetary policy without gold. I'm just not convinced in societies ability to affect sound governance of monetary policy without some "stronger" guard rails. Especially not in today's climate.
The Ron Paul fandom spread this myth around incessantly during the late 2000s.