Il sudore macchia i gioielli in argento?
L'argento sterling si ossida quando entra in contatto con lo zolfo.
Una volta sono andato su un'isola remota in cui l'acqua utilizzata per le docce e per gli scarichi dei servizi igienici era molto ricca di zolfo. Si sentiva l'odore dello zolfo nell'acqua mentre scorreva. I wear lots of bangle bracelets every day, some are silver, some are gold. All of my silver bangles turned black because of the high sulfur content in the water. Wearing them as I normally do “polished”them again. Noi (gioiellieri) use a liquid with sulfur in it to purposefully tarnish silver jewelry in recessed areas for contrast. Sterling silver serving pieces and cutlery slowly tarnish over time just because there is sulfur in the air. Sometimes when I sweat, I can see that I have tarnish from my bracelets on my arm, it's because of the sulfur in my sweat.
Organic gemstones such as pearls and corals are afraid of acid corrosion. Sweat is also the killer of organic gemstones. Avoid such gemstones and vinegar, acid detergents, ecc. Contatto, in the summer to avoid direct contact with the skin. Before the pearl collection, you can wipe it with a towel and some olive oil to make it bright and keep the pearl moisture and avoid cracking the bead surface. If the silverware is too dirty, you can dilute 50% with vinegar, but only once or twice, it will corrode for a long time.