Twenty-four karat gold is percent gold with no impurities But that percentage is difficult to achieve Refiners most commonly use one of two methods for the purification process The Miller method is the quickest and least expensive but the resulting gold is only about percent pure The Wohlwill process takes a little more time and costs more but the gold produced is percent pure In Bible times refiners used fire as a gold purifier Fire caused impurities to rise to the surface for easier removal In his first letter to Christians throughout Asia Minor northern Turkey the apostle Peter used
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