Have you ever noticed your favourite jewellery becoming dull, darker, or slightly discoloured over time? This is called tarnishing, and it is a common occurrence with many types of jewellery.
But why does jewellery tarnish in the first place?
What Is Tarnishing?
Tarnishing is a chemical reaction that happens when certain metals react with substances in their surroundings. Exposure to oxygen, moisture, sweat, and chemicals can gradually change the surface of the metal, affecting its original shine and appearance.
Tarnishing doesn’t necessarily mean that your jewellery is damaged permanently. In many cases, proper cleaning and care can help restore its appearance.
What Causes Jewellery to Tarnish?
1. Moisture and Humidity
Water and humidity can accelerate reactions on the surface of certain metals. Regular exposure to moisture, especially in humid climates, can contribute to tarnishing.
2. Sweat
Our skin naturally produces sweat and oils. When jewellery comes into frequent contact with them, the chemicals and salts present can affect certain metals over time.
3. Perfume and Cosmetics
Perfumes, moisturisers, sunscreen, makeup, and hair products can contain ingredients that react with jewellery. Wearing jewellery immediately after applying these products may increase exposure.
4. Air and Oxygen
Simply being exposed to air can cause some metals to oxidise over time. This is one reason jewellery may change colour even when it isn’t being worn.
5. Chemicals
Household cleaning products, chlorine, and other chemicals can affect jewellery finishes. This is why removing jewellery before cleaning or swimming is a good habit.
Why Does Some Jewellery Tarnish Faster?
Not all jewellery reacts to its environment in the same way. Tarnishing depends on factors such as the type of metal, purity, plating, protective finish, storage conditions, and frequency of wear.
Some materials are naturally more resistant to tarnishing, while others may require more frequent care.
Can Tarnishing Be Prevented?
You may not be able to prevent tarnishing completely,