The bracelet is not necessarily made of 999 pure gold, which means that the bracelet is made of 99.9% pure gold, while the bracelet is made of craftsmanship, which means that it is made of ancient gold-making technology. There is no necessary connection between the two. There is no difference between a gold bracelet with the same purity and an ancient gold bracelet, but the process is different. Under normal circumstances, the labor cost of ancient gold will be more expensive.
Four textures of gold
Mature gold is the gold after smelting and purifying raw gold, which is generally high in purity and fine in density, and some of it can be directly used in industrial production.
Common are gold bars, nuggets, ingots, various ornaments, utensils, gold coins, industrial gold wires, sheets and plates.
Because of different uses, the required fineness is different, or because there is no purification equipment, only unpurified gold is melted, or the purity is not enough to form gold with different fineness. It is customary to divide mature gold into pure gold, red gold and colored gold according to its fineness.
Gold with a fairly high purity after purification is called pure gold, and gold generally refers to pure gold with a purity of over 99.6%.
The meaning of red gold and pure gold is similar, but the standard of red gold varies with time and place. Gold with a purity of 99.6% sold in the international market is called red gold. Domestic red gold is generally between 99.2% and 99.6%.
Color gold, also known as secondary gold and tidal gold, refers to gold with low fineness. Due to the different contents of other metals, the purity of these gold is as high as 99% and as low as 30%.
According to the classification of other metals, ripe gold can be divided into solid gold, mixed gold and K gold. Clear gold means that gold is only mixed with silver, regardless of its fineness. Clear gold is more common in gold bars, ingots, nuggets and various utensils and gold ornaments.
Mixed color gold means that besides silver, gold also contains other metals such as copper, zinc, lead and iron. According to the different types and quantities of metals, it can be divided into small mixed gold, large mixed gold, bronze mixed gold and lead mixed gold.
K gold refers to the gold prepared by silver and copper in a certain proportion according to the formula that pure gold is 24k. Generally speaking, the more silver in K gold, the bluer the color; If the proportion of copper is large, the color is purple.