Do you know the difference between gold 999 and gold 9999? They are not just the difference in name.Gold 999 is a thousand-foot gold, containing no less than 99.90% gold, and gold 9999 is a thousand-foot gold, containing no less than 99.99% gold. In addition to the difference in purity, they have the following differences:1. Different hardness
There is a big difference in the hardness of gold 999 and 9999. If you use a hard object to scratch the surface of gold, a lighter trace will be left on gold 999, while the trace left on gold 9999 will be very obvious.2. Different prices
The price of gold 999 is lower than gold 9999. Gold 999 is generally used as a material for gold jewelry, while gold 9999 is mostly used as a material for gold bars.3. Different uses
Gold 999 is usually used to make jewelry, while gold 9999 is usually used as a raw material for jewelry or in circulation in the market, so if you simply want to buy gold jewelry to wear, there is no need to demand 9999 gold purity at all.4. Different colors
There is also a big difference in color between the two. Because of the lower purity of gold 999, it mainly appears golden yellow, while gold 9999 has a high purity and will appear dark yellow.
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