The phenomenon of jewelry leaving a green mark on the skin is a common concern, particularly with pieces that are not solid gold. This discoloration arises from a chemical reaction between the metal in the jewelry and substances on the skin, such as sweat, lotions, and oils. An example of this effect is often observed when wearing rings or necklaces crafted with a gold plating over a base metal.
Understanding the underlying causes of skin discoloration from jewelry is crucial for consumers. It allows informed decisions regarding the purchase and care of various types of jewelry. Historically, this issue has been associated with cheaper metals, but even items with a gold layer can cause this reaction under certain conditions. Knowledge of metal properties and proper maintenance can significantly extend the lifespan and aesthetic appeal of jewelry.