Novelties in Jewellery and Jewelery


Why the gold and the silver call noble metals

The gold and the silver call noble metals no so much because they are scarce and beautiful, but because no oxidan, as the majority of the others metals, when being exposed to the air.

What is the white gold?

It designates  white gold to an alloy of gold and some another white metal, generally nickel, manganese or palladium, many times recubierta of rodio of tall shine (finished mirror),because of the slightly turn# off shine of the resultant metal in some mixes. - Diseño de paginas - Guia comercial de el prat
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