Earth's largest gold reserves are not kept inside Fort Knox, the United States Bullion Depository. In fact, they are hidden much deeper in the ground than one would expect. More than 99.999% of Earth's stores of gold and other precious metals lie buried under 3,000 km of solid rock, locked away within Earth's metallic core and far beyond the reaches of humankind.
It’ll be like that scene in Andor where the empire are talking about mining the core of a planet.
“extraction can make the planet unstable. There’s a risk the core could collapse”
sounds like krypton, they mined it till the planet explode from being too unstable.