Why Does Gold Become Black?
- 23 April 2019
- Article by The Jeweller’s Market
Different alloys are added to pure gold to make the precious metal stronger and more flexible for when it comes to the production of gold jewels. Sometimes your adored gold piece begins to turn black. You cannot stop this process. There are several main reasons that cause the colour of this precious metal to discolour. Here are major ones…
Reason No. 1. Poor-quality alloys
If standards say that pure metals such as copper, silver or palladium may be added to gold, dishonest jewellers who want to reduce the financial costs for production can change the original formula of the precious metal. This may cause the gold to become black and oxidised. If this happens to you, we would advise returning to the shop where it was bought.Reason No. 2. Effects caused by the skin
During any physical activity, the human body releases sweat and other elements. The composition of sweat can differentiate from person to person depending on what they eat and if they have any chronic diseases. These elements can negatively affect the jewellery and can cause the gold to become dull and covered with an oily film. This situation can be corrected as there is an enormous range of special cosmetic products that can clean all jewellery.
Reason No. 3. Chemical products
Some substances can destroy the surface coating of the gold. We would strongly recommend preventing the contact of your jewels with mercury and iodine. This is because they aggressively influence the precious metal. These substances can be dangerous in both its pure form, and in creams. Iodine is added to water in swimming pools and so we would suggest taking off your jewels before visiting pools, saunas and even showers at home.
What to do in general?
In order to avoid buying poor quality gold jewels, make sure you purchase them in specialised jewellery shops that provide the receipt, label and additional recommendations on taking care of the gold jewellery piece.
Written by Julia Lopatiuk for Jewago