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What is the White Gold?

White Gold

White gold is defined as an alloy made of pure gold, i.e. yellow gold, but mixed with other metals such as silver, palladium and nickel, and gold is mixed with these metals in order to increase its hardness, strength and scratch resistance, because pure gold is a soft and easy to scratch metal, and these added minerals give it The required beautiful white color, and white gold is plated with rhodium metal to increase its strength and hardness, and to give it a striking luster, which distinguishes it from other jewelry.[1]

 

It is also worth noting that the price of white gold is higher than pure yellow gold in the markets, and its price in the market depends mainly on the price of yellow gold being the main component of white gold, meaning that the rise in the price of yellow gold leads to a rise in the price of white gold, and the same applies to Decreased price of yellow gold.[2]

 

 

Properties of white gold

People prefer to choose white gold as jewelry, due to several features that distinguish it from others, the most prominent of which are the following:[1]

 

1.      The appearance of white gold is beautiful, and it has the same appearance as platinum and silver, but its price is lower than that of platinum, and it is more solid and lustrous than silver.

2.     White gold is the first choice for those who prefer silvery white to yellow gold.

3.     Its distinctive color is suitable for adding all kinds and shapes of gemstones.

 

 

Disadvantages of white gold

White gold appears in a number of defects that must be taken into consideration before buying it, including the following:[2]

 

1.      White gold needs periodic maintenance as it is plated with rhodium metal, which makes it susceptible to corrosion, as a result of this layer’s interaction and friction with the oils that are present on the surface of human skin, which reduces its luster over time.

2.     White gold sometimes causes allergic reactions on human skin, due to the effect of other metals with which white gold is mixed on the skin, and these metals include nickel, which is one of the most common allergens when used in jewelry.

3.     White gold jewelry can be scratched if used on a daily basis.[3]

 

 

How can white gold be distinguished from pure platinum?

There are several tests that can be applied to white gold and platinum to differentiate between them, and these tests include the following:

 

Heating test

A piece of white gold is heated to high degrees and continues to heat, until the color of the alloy turns red, then the alloy is left to cool, and if its color turns darker than the previous color, it is white gold, but if the color remains as it is, this alloy is from Pure platinum.[4]

 

 

Scratch test

The scratch test is applied by following these steps: [5]

1.      The object to be examined is passed over the surface of a black, rough stone, and applied pressure to the ingot in order to create scratches on the metal.

2.     The sample to be examined is distilled with a test solution intended for platinum and 18 and 14 karat white gold.

3.     If the sample melts after 15 seconds, the metal is 14 karat white gold.

4.     If the color of the sample changes after 3 minutes to a light bronze color, the metal is 18 karat white gold.

5.     If the color of the sample does not change, the metal is pure platinum.

 

 

 

References

1.      "What Is White Gold?", thediamondstore, Retrieved 17/7/2022. Edited.

2.     "What Is White Gold Jewelry? Full Guide (Plus Pros & Cons)", learningjewelry, Retrieved 17/7/2022. Edited.

3.     "WHITE GOLD", qualitydiamonds., Retrieved 17/7/2022. Edited.

4.     "Separating Platinum from Gold During the Early Eighteenth Century", matthey, Retrieved 17/7/2022. Edited.

5.     "Instructions for Scratch Testing Gold, Platinum & Silver", ishor, Retrieved 17/7/2022. Edited.

 

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