You can smash the stone with a hammer and take acid foam, hydrochloric acid and sulfuric acid. Gold will not be dissolved. When the stone is dissolved, the residue is collected by filtration and then soaked in strong acid.
If possible, you can do an X-ray spectral composition chemical element test of the ore.
The role of gold:
Gold is a precious metal with magical power. Rare and precious, with stable value. It is a symbol of wealth and status. It has always been the goal pursued by people, and its status is enduring.
Everyone knows that owning gold is equal to owning wealth, which is determined by its unique characteristics, so people have always used gold mainly as financial reserves, currency and jewelry. Of course, the use of gold is not limited to these fields.
The luxury of gold has made it used as jewelry decoration since ancient times. The monetary commodity attribute of gold determines that gold is widely used in financial reserves.
Because of its excellent characteristics, gold has played a role as a currency in history, such as a measure of value, a means of circulation, a means of storage, a means of payment and a world currency.