gold ring does not turn black
Do real gold turn black when you burn it
Not naturally it can't turn black.
NO. Silver will tarnish and turn black, though. Silver will but Gold shouldn't wrong answer: Gold can turn dark grey/ black also (if you don't know / don't answer)
As bleach will not affect gold, it will not turn black! However, if the coin is actually brass it might...
it is not gold, it could be gold plated or brass
Yes
They're fake?
There are various things that can do some damage to gold. For example, there is nitric acid, which will turn gold 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.
No that is not true at all.
Besides being expensive, gold is a very soft metal, so it is mixed with harder metals to make it suitable for earrings (also gold coins, cuff links, tie clasps, rings, toe rings, navel rings, and just about everything else made from gold). Nickel is often used, and it turns black from exposure to the air, which is why an old nickel coin turns black. The gold itself should not turn black.