Glass meteorite is the product of the cooling of the melting liquid during the landing process of a certain meteorite。 It is the second crystallization of the melting material produced by the space object when it falls into the earth's atmosphere。 Because the composition is different, the color is also different。 There are two main characteristics of top-grade glass meteorites: one is the integrity of the whole glass meteorite, the appearance of craters, air traces, melt traces, molten crust and so on is obvious; the other is the glass meteorite composed of rare elements or elements not found on the earth。 British biologist Darwin obtained a button-shaped glass block in Australia in 1844, which was later known worldwide as "glass meteorite"。 It is a natural glass substance。 Because it looks like obsidian, it is also called obsidian。 But their composition and structure are different。 Most of the glass meteorites are spherical, slender, dumbbell-shaped, droplet-shaped, button-shaped and irregular massive。 It is scattered in groups in continental or submarine sediments。
For a long time, people all over the world have a wonderful legend and praise of meteors. When meteors drag beautiful arcs toward the sky, some people often tacitly agree with the good wishes in their hearts. Many literati and Mohists put meteors into sentences, so people have a beautiful yearning for glass meteorite, a special meteorite, and a preference for collecting it. At the same time, it enriches knowledge and broadens the horizons of Tibetan friends.
The glass meteorite, weighing about 368.2g, is shiny, yellowish-brown, shiny and glossy, leaving traces of high-temperature combustion and tiny pores, as well as streamlines and streamlines when meteors fall through the atmosphere under friction. Inner high purity without impurities, the whole body is covered with small bubbles, melt shell has a rheological pattern, very beautiful. Glass meteorites are of great value in the fields of medical care, aerospace and defense industry.
Because of the particularity of its origin, meteorites have become treasures of great collection value comparable to stamps, jewelry, calligraphy and painting, coins and so on. At present, the price of glass meteorite is comparable to that of diamond in the global price. Meteorite collection has gradually won the hearts of collectors, and because of its preciousness and rarity, it has become the favorite of the collectors.