Wednesday, May 1, 2013

How is Gold Checked for Purity?

  

The value of gold is based on the karat system, which is a 24-point scale signifying the percentage of gold a piece of metal contains.

So, if gold jewelry is 14K, it is 14 out of 24 parts gold, or 58.33 percent gold
.
The acid test is the cheapest method used to check gold. Simple acid test kits typically come with a black touchstone and several acid solutions, which are marked for different karats.

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