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Gold assaying is essential in determining the amount of gold in a mineral deposit. The process involves bringing a rock sample, most often a core obtained through drilling, to a laboratory where it is examined by experts. Assay results are often mapped and used to pinpoint targets for future drill programs.
Gold is the most well known of the native metals. Most gold is mined as native metal and can be found as nuggets, veins or wires of gold in a rock matrix, or fine grains of gold, mixed in with sediments or bound within rock. The iconic image of gold mining for many is gold panning, which is a method of separating flakes of pure gold from river sediments due to their great density.