Yes, fake gold can turn green in some cases. This is typically due to the presence of other metals in the alloy, such as copper or brass, which can react with moisture, oxygen, and other environmental factors to produce a greenish tint on the surface of the gold.

This greenish tint is often referred to as “verdigris” and can be seen on fake gold jewelry and other metal objects such as statues or ornaments. The presence of verdigris does not necessarily indicate that the gold is fake, as it can also appear on genuine gold jewelry containing other metals in the alloy.

However, the appearance of verdigris on gold jewelry can be a sign that the jewelry is not well-made or of high quality. It is essential to purchase gold jewelry from a reputable dealer or jeweler who can provide information about the purity and quality of the gold and to take good care of the jewelry to prevent damage or discoloration over time.