Discoloration is not a quality problem, and improper use. All of them will seriously fade the color of silver products. (1) Q:Is this real pure silver?. (4) Q:Why does silver turn black or yellow?. About the maintenance of silver jewelry color:.

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Discoloration is not a quality problem, and improper use. All of them will seriously fade the color of silver products. (1) Q:Is this real pure silver?. (4) Q:Why does silver turn black or yellow?. About the maintenance of silver jewelry color:.