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Vickers Hardness of Precious Metals

Rhodium (plating) 800 HV
14k White Gold 230 HV
18k White Gold 210 HV
18k Yellow Gold 155 HV
14k Yellow Gold 140 HV
14k Rose Gold 140 HV
Palladium 130 HV
Platinum 125 HV
Sterling Silver 75 HV
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