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The short answer is: they can. The reason is that the actual gold layer can wear unevenly and expose the base metal which is naturally a different color. In my experience, in severe climates (such as tropical or salt water), the plating can become tarnished and eroded by just contact with the air, given enough time. See a more detailed explanation here: http://goldbeads.net/why-18k-gold-beads.htm
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Why does my gold ring turn my finger black?
it is not gold, it could be gold plated or brass
Why does 14K gold turn color and What would you use to clean it?
14K gold does not turn color. If it does turn color, it is not solid gold but may be plated.
What colors can a Magikarp turn?
gold
Is 14 karat gold plated in a ring any good and will it turn?
Gold plated jewelry will only be good for a while and then it is prone to turn. As the plating is just a covering, if the jewelry is worn a lot or in chemicals the ring may change color.
What is the value of a 2002 gold US quarter?
The Mint has never made gold quarters. If you have a gold quarter then it has been plated which destroys the numismatic value of the coin. Its value is 25 cents plus the value of the little bit of gold they used to plate it. Some chemicals can cause the quarter to turn different colors. This also does not enhance the value of the coin.
What colors can macaws turn into?
Blue, gold, green, yellow, red, lots of multi colors and combinations
Why does gold jewelry turn skin green?
because It's plated copper! pay attention in chemistry, you pleb
What color will gold turn if put in honey?
Pure gold will not change colors in honey or almost anything else.
Will rodium turn my finger green?
The rhodium plated don't turn you finger green, but your altificial white gold plated come back to yellow color. The people has to know yellow gold with rhodium it is fool... Because is soft and you has to mix with other precious metal to make jewelry; because in natural way don't good for jewelry !
Why would a white gold engagement ring turn your finger brownish-orange?
My bet is you have a cheap fiancee, and the ring's copper that was plated with a white metal.
Why does gold turn finger black?
Gold will typically turn black when mixed with a different type of alloy. Bleach and chlorine can turn yellow gold black if it comes in contact with the gold.
can white gold turn slightly yellow?
Yes, some white gold can definitely turn slightly yellow. In fact, "white" gold alloys (gold with nickel, for example) may be plated with rhodium to obtain the shiny appearance. If the alloy underneath has a higher gold content, then it is possible that when the plating wears through you will see gold color. However, true high quality white gold should still remain white, no matter how old it is.
