陨石的由来：目前发现地有中国，美国，澳洲，南极大陆等地区。陨石的“家”是遥远而古老的太空。它们是由地球以外的太阳系其他天体，如小行星、行星、大的卫星或彗星等分裂后产生的碎块形成的，包含着大量太阳系天体形成和演化的信息。从现在采集到的陨石来看，大部分陨石来源于小行星带。通过碰撞和引力作用，有些固体颗粒会进入地球轨道，当它们与大气发生剧烈摩擦后，就开始燃烧，如果这个固体颗粒个头足够大，没有烧尽的部分落到地球上就会成为陨石。
Origin of meteorites: at present, they are found in China, the United States, Australia, Antarctica and other regions. The "home" of meteorites is a distant and ancient space. They are formed by the fragmentation of other celestial bodies in the solar system, such as asteroids, planets, large satellites or comets, which contain a lot of information about the formation and evolution of celestial bodies in the solar system. From the meteorites collected now, most of them come from asteroid belt. Through collision and gravitation, some solid particles will enter the earth's orbit. When they rub violently with the atmosphere, they will start to burn. If the solid particles are big enough, the part that is not burned will fall on the earth and become meteorites.
据有关资料显示，每年陨落到地球的陨石多达20000块，仅有20块被人类捡拾，足见其稀有和珍贵。最近十年，随着陨石知识的日益普及，想收藏的不断增多，奇货可居，国内叫价有时甚至远高于国际价格。世界上众多的博物馆和研究机构也对陨石充满了极大的兴趣，一直致力于对其所处星体和时代的研究，进一步促进了陨石经济价值的提升。
According to relevant data, as many as 20000 meteorites fall to the earth every year, only 20 of which are picked up by human beings, which shows that they are rare and precious. In recent ten years, with the increasing popularity of meteorite knowledge, the number of meteorite collections is increasing. The domestic price is sometimes much higher than the international price. Many museums and research institutions in the world are also full of great interest in meteorites. They have been committed to the research of their stars and times, further promoting the economic value of meteorites.
陨石一般密度较大。按照成分的不同可分为三种：铁陨石、石陨石和石铁陨石。地球上的石头有很多种类。陨石中的铁中要以单质的形式存在，而地球上的石头中是没有单质铁的。陨石一般是对人没害的。但是里面可能会存在对人有害的放射性元素。
The density of meteorites is generally large. According to the different composition, it can be divided into three kinds: iron meteorite, stone meteorite and stone iron meteorite. There are many kinds of stones on the earth. The iron in meteorites should exist in the form of a single substance, while there is no single substance in rocks on earth. Meteorites are generally harmless to people. But there may be harmful radioactive elements in it.
石铁陨石是陨石的一种。这类陨石中硅酸盐与镍铁合金的含量各占50%。石铁陨石又分为两个子类：橄榄陨石与中铁陨石。
Iron meteorite is a kind of meteorite. The contents of silicate and ferronickel in these meteorites account for 50% respectively. There are two kinds of iron meteorites: Olivine meteorite and iron meteorite.
外表熔壳：陨石在陨落地面以前要穿越稠密的大气层，陨石在降落过程中与大气发生磨擦产生高温，使其表面发生熔融而形成一层薄薄的熔壳。因此，新降落的陨石表面都有一层黑色的熔壳，厚度约为1毫米。
Outer melting shell: before falling to the ground, the meteorite must pass through the dense atmosphere. In the process of falling, the meteorite will rub with the atmosphere to produce high temperature, making its surface melt to form a thin melting shell. As a result, the newly fallen meteorites are all covered with a layer of black molten shell, which is about 1 mm thick.
表面气印：另外，由于陨石与大气流之间的相互作用，陨石表面还会留下许多气印，就象手指按下的手印。 ．内部金属：铁陨石和石铁陨石内部是有金属铁组成，这些铁的镍含量很高（5－10%）。球粒陨石内部也有金属颗粒，在新鲜断裂面上能看到细小的金属颗粒。 ．磁性：正因为大多数陨石含有铁，所以95%的陨石都能被磁铁吸住。
Surface gas seal: in addition, due to the interaction between the meteorite and the large air flow, there will be many gas marks on the surface of the meteorite, just like the fingerprint pressed by fingers Internal metal: iron meteorites and iron meteorites are composed of metal iron with high nickel content (5-10%). There are also metal particles in the chondrite, and small metal particles can be seen on the fresh fracture surface . magnetism: because most meteorites contain iron, 95% of them can be attracted by magnets.
专家推荐：陨石是经过遥远的外太空经过漫长的飘行，又经过急速的坠落、高温的摩擦降临了地球，被称作 “天外来石”的陨石因极高的科研价值一直受到众多天文学家和地质学家的热捧。现在，陨石珍藏热席卷全球，能够珍藏陨石成了就珍藏家身份职位的象征，其中陨石有着丰富的历史价值和科研价值，备受收藏家们的追逐，此石铁陨石，色泽褐黑，陨石表面布有大小不一、深浅不等的凹坑，即熔蚀坑。内部含铁较高的石陨石，重量比石陨石大的多，手感很明显，表面呈金属光泽，很是珍贵。此件石铁陨石表面呈现自然燃烧痕迹灼烧痕迹明显，气印密集漂亮。实属罕见，不仅是从此陨石外观，还是本身的价值来看,都是很高的科研价值、观赏价值和考古价值，收藏价值和经济价值，且随着陨石市场逐步走好，升值空间非常之大
Experts recommend that: Meteorites come to the earth after a long journey through remote outer space, a rapid fall and high temperature friction. Meteorites called "extraterrestrial rocks" have been popular with many astronomers and geologists for their high scientific research value. Now, the meteorite collection heat has swept the world, and the meteorite that can be collected has become a symbol of the status of a collector. Among them, the meteorite has rich historical value and scientific research value, and is chased by collectors. The iron meteorite is brown and black in color, and the surface of the meteorite is covered with craters of different sizes and depths, namely, erosion craters. The meteorite with high iron content in the interior is much heavier than the meteorite, with obvious hand feeling and metal luster on the surface, which is very precious. The surface of this piece of meteorite shows natural burning trace, obvious burning trace, dense and beautiful air mark. It's really rare. Not only in terms of the appearance of the meteorite, but also in terms of its own value, it's of high scientific research value, ornamental value, archaeological value, collection value and economic value. With the meteorite market gradually improving, there's a huge room for appreciation
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