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What's the difference between platinum and gold

Sihaiwang: the Chinese Valentine's Day is coming soon. Many couples are trying to figure out how to spend it. I believe that gifts are carefully selected. Of course, on such an important day, it is necessary to propose. Then the importance of a ring is self-evident. When it comes to rings, we have to talk about the material. The ring is divided into platinum and gold. So what are the differences between platinum and gold? Let's take a look with Xiaobian.

What is the difference between platinum and gold

1、 Platinum

Platinum (PT) is a kind of white precious metal formed naturally.

Pure:

The purity of platinum jewelry is very high

The purity of platinum jewelry is usually as high as 90% - 95%. The common purity of platinum jewelry is PT900, pt950. According to national regulations, only jewelry with platinum content of 850 & permil; and above can be called platinum jewelry. Platinum jewelry is very pure, so it will not cause skin allergy.

Platinum has a natural pure white color

The white luster of platinum is natural and pure, which gives the unique appearance of platinum jewelry. Even if it is worn every day, platinum has a pure white luster.

Rare:

Rare platinum production

Platinum is thirty times rarer than gold and is mined only in a few parts of the world. If all the world's platinum is poured into an Olympic standard pool, it will not be deep enough to cover the instep, and gold can fill at least three pools.

One ton of platinum ore can only extract about 3 g of platinum

Three grams is the weight of a smaller platinum ring, and it takes about eight weeks and a lot of energy to extract it.

eternal:

Platinum can be worn every day, forever

Platinum is very stable in nature and will not deteriorate or fade due to daily wear. Its luster is always the same. Even contact with common acid substances in life, such as sulfur in hot springs, bleach, chlorine in swimming pools, or sweat, will not be affected, so you can wear platinum jewelry at any time with great confidence.

Platinum 's natural pure white will never fade

No matter how long it is worn, platinum can keep its natural pure white luster and never fade.

2、 Gold

Gold is the single substance form of chemical element gold (chemical element symbol AU). It is a soft, golden yellow, corrosion-resistant precious metal.

Mature gold is the gold after smelting and purification of raw gold. Generally, it has high purity and fine density, some of which can be directly used in industrial production.

Common are gold bars, Nuggets, ingots and various ornaments, utensils, gold coins, as well as industrial gold wires, gold chips, gold plates, etc.

Due to different uses, different colors are needed, or there is no purification equipment, but only the raw gold is melted, or the purity is not enough to form gold with different colors. People are used to dividing the mature gold into three kinds: pure gold, red gold and colored gold according to the level of color.

After purification, the gold with a high purity is called pure gold, which generally refers to the pure gold with a color of over 99.6%.

1. The meaning of red gold is similar to that of pure gold, but due to the different time and place, the standard of red gold is different. The gold sold in the international market, with a color of 99.6%, is called red gold. And the red gold in China is generally between 99.2% and 99.6%.

2. Color gold, also known as "secondary gold" and "Chaojin", refers to the gold with lower color. Due to the different contents of other metals, these gold are as high as 99% and as low as 30%.

According to the different classification of other metals, mature gold can be divided into clear gold, mixed gold, K gold, etc. Pure gold refers to the gold only mixed with silver, regardless of the level of color, collectively referred to as pure gold. Clear color gold is more common in bars, ingots, nuggets and various utensils and gold ornaments.

3. Mixed color gold refers to gold containing not only silver, but also copper, zinc, lead, iron and other metals. According to the variety and quantity of metal, it can be divided into small mixed gold, large mixed gold, bronze large mixed gold, lead large mixed gold, etc.

4. K-gold refers to the gold which is made up of silver and copper in a certain proportion according to the formula of 24K full gold. Generally speaking, the more silver content of K gold, the bluer the color is; the more copper content, the purple red color is.

The percentage represented by K value is only a approximate number, and it is not required to be very accurate. But it is customary to use even K value, such as 24K, 22K, 20K, 18K, etc. 18K means that there are 18 gold in 24 alloys, equivalent to about 75%. Calculation method of K-gold: the calculation formula of K-gold equivalent gold content is: K value & pide; 24 & times; 100% (i.e. K value & times; 4.1667%)