Is the oxidation or gradient patina permanent?
The oxidation/patination process is very quick to ensure that the metal does not have a thick coating that could flake off. The effect is permanent but it does not mean that it will not change (see the care section for pointers). The nature of sterling silver is to darken or tarnish over time, which can affect the look of the patina. The patinas do not come off on your skin when wearing them, but often the dark oxidation gets slightly shinier with repeated wear. I apply a light lacquer coating to some pieces if it works on the materials to help slow the change. Personally I like the changeable nature of the work – it makes it artsy-er and more unusual.
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