Sikkim is a kind of nickel alloy, that is, K gold, which is the same color as gold. After a long time, when the color turns black, put it on an alcohol lamp to burn it red, and then quench it with cold water, and it will immediately return to its original golden color.

Financial calendar information express accurate market free watch futures trading software crude oil precious metal market software. 1, the gold content is different. When the gold content reaches 99%, it can be called pure gold, while the gold content of thousands of pure gold can reach 99.99%, which is a higher level of gold content. There is no gold with the content of 100% in the world, and modern technology simply can't reach this level. Only in the process of infinite approach, it is difficult to increase gold with higher purity by one thousandth. Whether it is gold or thousands of pure gold, it is already a very advanced quality. 2, the gloss is different. The higher the purity of gold, the brighter and golden its color and the better its luster. Pure gold naturally has better gloss than gold. But speaking of it, gold and pure gold are already very good values and qualities. It is also very popular in the market. 3. The market value is also different. In terms of market value, the price of pure gold is naturally higher than gold. In the market, both gold and thousands of gold are very good gold. For thousands of years, ordinary consumers' love for gold has never weakened, because gold is easy to realize and has the function of maintaining and increasing value. The higher the gold content, the greater the space for maintaining and increasing value. Many people have the habit of buying gold bars, because it not only has good liquidity, but also has the property of investment and financial management, which is why it has been highly respected for thousands of years.