This is gold.

The largest producer in 2012 is China , it produce 370,000 kilograms .

The most common user of gold is making jewelry ,about 78% of gold is making jewelry.The second most common is making electronics and computers .

The problem with gold extraction is environmental problems .When people gold mining , it create massive amounts of toxic waste and causes more global mercury pollution than any other source.

And this is a gold ore.

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