How many grams of China's gold recovery price today
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How many grams of China's gold recovery price today
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China's gold basic gold price is 366.4 yuan/gram, 99.9%, Chinese gold, gold resources control over 1,200 tons, ranking first in China; copper resources reserves 8 million tons, ranking among the top five nationwide non -ferrous industries; molybdenum resource reserves 120 10,000 tons, ranking among the top three nationwide colored industries. Total assets exceeded 34 billion yuan. The total number of ore with the group has a total amount of 120,000 tons, distributed in 26 provinces and regions in my country, of which 2 listed companies ("China Gold Gold" in the domestic A -share market and "Jinshan Mining" in the Toronto Exchange in Canada).
I. Gold (GOLD) is a single -quality form of chemical element gold (AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments. The chemical symbol of gold is AU, and the English code in finance is XAU or GOLD. The name of the AU comes from a story of Aurora, a goddess of dawn in Roman mythology, means shining dawn. As of October 12, 2021, the price of gold was $ 1760/ounce.
. Differential adulteration
1, whether gold has white highlights to cut the gold bar or gold jewelry, and observe the cut surface with a magnifying glass. It means that the gold is mixed with 铱.
2, measured the proportion. First measure the weight of a pure gold bar with a balance, then put the gold bars into a measuring cup, and flood the gold bars. Then put the detected gold bars in a measuring cup, whether the scale of the water rises or decreases. As long as it changes, it means that the gold bar is not pure gold. But if it is gold jewelry, this method is not applicable because there is air in gold jewelry.
3, real gold is not afraid of fire. Put the golden bars or gold jewelry on the fire for a while to observe its changes. Because the oxidation reaction occurs with oxygen in the air, the gold bars with insufficient purity will become gray; and the color of the pure gold will be red after the fire is baked. However, this method may be destroyed to jewelry.