Gold

So yesterday morning I heard someone say that all the gold that has been mined in the history of the world would only fill 2 Olympic swimming pools! You think of how much gold mining has gone on and all of the gold rushes and now industrial mining and all of the jewelry, etc, then imagine it all in once place, now it doesn't seem like there is that much of it anymore. More gold fun facts -

Gold was used as medecine in the middle ages (of course, something rare and beautiful can only be good for health!)

Gold has been used since the Copper Age between the Neolithic and Bronze Ages.

There are about 4600 tons of gold in the Fort Knox Depository.

It takes a lot of ore to get a little gold as you can see in the picture below - 860 kg ore and 30 g gold.