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How To Test For Gold Ore

How To Test For Gold Ore

Apr 24 2017 Observe the color the acid turns when it reacts to the rock streak. If gold is present in more than 14 karat purity there will be no reaction. If gold is present in 12 karat concentration the sample will turn light brown. If 10 karat gold is present the sample will turn dark brown.

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How To Test For Gold Ore