How Gold is Refined
1:31
YouTubeSilver Dragons
How Gold is Refined
This video shows how gold is refined at the Perth Mint refinery. Gold ore is brought in from the gold mine and then the gold is melted and goes through primary refining. The gets the gold to about 95% pure. Secondary refining uses acid to get the gold about 99.996% pure. This gold is used to make gold coins and gold bars. Subscribe for more ...
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