Doré bar
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A doré bar is a semi-pure alloy of gold and silver. It is usually created at the site of a mine and then transported to a refinery for further purification.
Gold concentrate, dominated by flakes ~0.5–1 mm across (a) and Doré bar produced from the gold concentrate (b).
Silver
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Silver is a chemical element; it has symbol Ag and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflect
Silver bullion bar, 1000 ounces
Silver is extremely ductile and, like gold, can be drawn into a wire one atom wide.
The three common silver halide precipitates: from left to right, silver iodide, silver bromide, and silver chloride