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Old gold is often slightly cheaper than new gold in the sense that less raw gold is required in producing it.The old materials can actually be recycled to standard platelike ingots material. The raw molten gold is then used in the gold jewelry vacuum casting machine for the finishing of jewelry products.
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One of the ways to find raw gold begins with panning for it in creeks or rivers fed by eroded gold from mine or natural deposits in rock formations above the water sources. Placer gold, roughly 75to95 percent real gold comes in a variety of shapes and sizes, from small flakes to large bumpy nuggets. When panning, raw gold weighs the heaviest
Golds melting point is also very high, at 1,945 degrees F. Gold can be stretched and hammered into sheets or strings very easily without breaking, and can be 10 times as thin as paper, according to How to Test Gold. Gold is a soft metal, however, and must be mixed with other metals for strength. There are several tests to identify gold dust.