Meteorite, as a kind of "whisper", has a special position, but the frequency of its falling is much higher than our imagination. The earth moves in the universe and passes through countless stars every day. After these meteoroids enter the atmosphere, most of them will disintegrate, but some of them will fall to the surface of the earth. These last "survivors" are meteorites.
Over the past half century, 72 1 meteorite falls have occurred every year on average in the world. Among them, 1979 and 1988 appeared more than three thousand times. It is worth noting that these data are only recorded by the International Meteorological Society (hereinafter referred to as the "Society"), and the information is complete, including latitude, longitude and quality. The main purpose of this database is to provide the official names of all kinds of meteorites, and only record the individuals who have passed the certification of the society. Therefore, many meteorites that fall in the sea or other no-man's land, as well as small meteorites that are ignored, will not be recorded.
According to the recorded data, according to the distribution of meteorite falls, meteorites fall most frequently in North America, North Africa, West Asia and Antarctica. Contrary to our usual cognition, not all these star fragments fall in sparsely populated places. In densely populated areas, meteorites also land from time to time, such as the southwestern United States, western Europe, South Asia and East Asia.
According to the data of the International Meteorological Society, there have been 252 meteorite falls in China. This is the most official figure at present, but it may ignore a large number of meteorites that have not been submitted for certification and have fallen into no man's land. Among them, Xinjiang has the most times, which is close to half of the total. In addition, there have been many meteorite falls in Inner Mongolia, Jiangsu, Guangxi and Qinghai.
In fact, meteorites, as foreign space resources, have rich scientific research, collection and economic value. Meteorites are divided into iron meteorites, stone-iron mixed meteorites and stone meteorites. Among them, stone-iron meteorites account for 1.2% of the total meteorites, so their commercial value is extremely high. According to the data, the price of stone meteorites generally ranges from 2,000 yuan per gram of 800 yuan, and the price of iron meteorites and stone iron meteorites ranges from 1.500 yuan to 3,500 yuan per gram. The source of meteorites is also very important. In the international market, the price of ordinary meteorites is about $0 to $30 per gram/kloc-0, while rare Martian meteorites and lunar meteorites can be sold for $5,000 to $6,000 per gram, much higher than gold and diamonds.