Different gold hardness is different. The hardness of the foot gold is 2.5, and the hardness of the hard gold is 9.7, 18K gold is about 4.0 to 4. 1, foot gold The same gold hardness is different. The common gold hardness on the market is about 2.5. The texture of this gold is very soft. Essence 2, hard gold This in the market also has a gold called hard gold. The hardness of this gold is 9.7 and the hardness is about 4 times the gold. Gold varieties formed by structure. 3, 18K gold 18k gold is made of 75%gold and 25%of other metals. This gold has a hardness of about 4.0 to 4.5. At present, most of the gold jewelry on the market is 18K. Made in gold. Gold purchase method 1. Choose a regular store When buying gold, choose a more formal, large and historic store, guaranteed quality, and gold jewelry craftsmanship is more superb. Essence 2, 量 weight . As the saying goes, "gold pending hands" ", you must put it on your hand when buying. Gold is about double the same volume of silver, lead and tin. 3, test soft and hard everyone knows that the higher the golden purity jewelry, the softer and easier to defor. If it is difficult, it means that it is gold mixed with other impurities.
Different gold hardness is different. The hardness of the foot gold is 2.5, and the hardness of the hard gold is 9.7, 18K gold is about 4.0 to 4.
1, foot gold
The same gold hardness is different. The common gold hardness on the market is about 2.5. The texture of this gold is very soft. Essence
2, hard gold
This in the market also has a gold called hard gold. The hardness of this gold is 9.7 and the hardness is about 4 times the gold. Gold varieties formed by structure.
3, 18K gold
18k gold is made of 75%gold and 25%of other metals. This gold has a hardness of about 4.0 to 4.5. At present, most of the gold jewelry on the market is 18K. Made in gold.
Gold purchase method
1. Choose a regular store
When buying gold, choose a more formal, large and historic store, guaranteed quality, and gold jewelry craftsmanship is more superb. Essence
2, 量 weight
. As the saying goes, "gold pending hands" ", you must put it on your hand when buying. Gold is about double the same volume of silver, lead and tin.
3, test soft and hard
everyone knows that the higher the golden purity jewelry, the softer and easier to defor. If it is difficult, it means that it is gold mixed with other impurities.