jewelry  why


Question by  rubytadpole (119)

When I rub a ring on my face, why does it leave a black mark?

It's a silver ring.


Answer by  Cecilia (2828)

Silver oxidizes. That means the uppermost layer of silver molecules joins with oxygen molecules. This is what makes silver tarnish. The oil from your skin will rub off a layer.


Answer by  amp2140 (148)

The silver on the ring is tarnished. The ring needs to be polished to remove the black. That, or the ring is not silver and was only painted silver with a cheaper black metal underneath.


Answer by  fishy (1085)

Silver tarnishes very easily and the tarnish is a gray to black color. If the ring is leaving black marks on your skin, chances are it is tarnished.

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