How to identify the characteristics of meteorites, the characteristics of meteorites and how to iden

There are three key points for the first identification of meteorites:

1) Whether there is a molten shell or a partial molten shell: In addition to the characteristics of air marks and streamlines, the color of the molten shell of meteorites is brown and black, and black is the main tone. It is about one millimeter thick, and has typical high-temperature melting characteristics, with rounded edges and corners.

Some of the earth's rocks also have so-called crusts, which are the result of natural erosion and weathering. It does not have the characteristics of high temperature melting, and the edges and corners can be distinguished. The color is brown and gray, and gray is the main tone.

2) Magnetic: with magnet.

Check whether the suspect is magnetic or not. Magnetism is generally divided into four categories: strong magnetism, medium magnetism, weak magnetism, and weak magnetism. Iron meteorites are mainly composed of alloys of iron and nickel stone, so they are strongly magnetic. Stony-iron meteorites are mainly composed of iron-nickel alloys.

and meteoric silicates.

Mineral composition, so it has medium or medium strong magnetism. In addition to silicate chondrites, chondrite meteorites also contain millimeter-level iron-nickel alloy particles, so they are weakly magnetic. Chondrite meteorites are mainly composed of meteorite silicates and contain trace metal elements, so they are non-magnetic or have weak magnetism.

3) Specific gravity: Specific gravity is an important indicator for our initial identification of meteorites. We know that most of the Earth's rocks have a specific gravity of about that.

There are strong magnetic iron ores on the earth, and their specific gravity is about 5. That is, the weight of two ordinary rocks together is roughly the same as that of an iron rock for the same size of ore.

External features of the meteorite:

1) Whether there is a typical black shell or gray-black shell on the surface of the sample, and the color of the contents is basically different from the color of the shell. 2) The sample is not heavier than other ordinary stones. It is important to know that the vast majority of meteorites are denser than the earth's rocks and have a dense structure.

3) The sample is not in the surface with some depressions, like finger prints. Or there are obvious traces of high-speed air flow erosion on the surface, and the direction is roughly the same. 4) The sample is not attracted to the magnet.

It's important to know that the vast majority of rocks on Earth don't have this property. 5) On the damaged surface or cut surface of the sample, can some silvery-white metal spots or plaques be observed with the naked eye? 6) On the damaged surface or cut surface of the sample, can be observed with the naked eye some different particles or round pellets, with a diameter of about 1 mm.

If it meets the above characteristics, it is likely to be a meteorite.

Summary. Hello, and the basic characteristics of meteorites are mainly divided into the following aspects: first, the molten shell and color of meteorites are distinguished, meteorites are through the earth's atmosphere to the ground, so the surface of these meteorites will burn to produce a molten shell, this molten shell is basically black, but if it falls on the earth when the age is relatively old, and then after the weathering and erosion of the earth's surface, maybe the color will become dark brown, but there is another kind called glass meteoriteThere may be other colors of this meteorite, and now scientists do not classify glass meteorites as meteorites, which are believed to be meteorites that hit the ground as a result of flying matter and meteorite debris.

Characteristics of meteorites and methods of identification.

Hello, and the basic characteristics of meteorites are mainly divided into the following aspects: first, the molten shell and color of meteorites are distinguished, meteorites are through the earth's atmosphere to the ground, so the surface of these meteorites will burn to produce a molten shell, this molten shell is basically black, but if it falls on the earth when the age is relatively old, and then after the weathering and erosion of the earth's surface, maybe the color will become dark brown, but there is another kind called glass meteoriteThere may be other colors of this meteorite, and now scientists do not classify glass meteorites as meteorites, which are believed to be meteorites that hit the ground as a result of flying matter and meteorite debris.

Secondly, in terms of the appearance and density of meteorites, the shape of meteorites is basically spherical or sharp, the shape of meteorites is generally irregular, but the corners are basically relatively smooth, meteorites generally do not have naturally formed cavities, and meteorites are much heavier than ordinary rocks on the earth in terms of volume, such as iron meteorites whose weight is about twice that of ordinary rocks.

Because meteorites are from outer space, the determination of the authenticity of meteorites requires instrument identification, and the naked eye only has an auxiliary role. Most meteorites come from the asteroid belt between Mars and Jupiter, and a small number from the Moon and Mars. Meteorites can be roughly divided into stony meteorites, iron meteorites, and mixed meteorites of stone and iron.

The average density of meteorites is between 3 and the main component is silicate. Meteorite has a density of iron and is mainly composed of iron and nickel. The meteorite composition is somewhere in between, with a density in between.

Meteorites vary in shape, the largest meteorite is the Jilin No. 1 meteorite, which weighs 1,770 kilograms, and the largest meteorite is the Goba meteorite from Namibia, which weighs about 60 tons. The crown of Chinese meteorites is the "silver camel" found in Qinghe County, Xinjiang, weighing about 28 tons.

Meteorites are characterized by molten crusts, specific gravity, flow patterns, and hardness, which are given to it by the atmosphere.

Molten crust: When a meteorite passes through the atmosphere, the extremely high temperature causes the surface of the meteorite to melt, creating a vitreous layer in the micron to millimeter range. When meteorites exist on the surface for a long time, the molten crust is easy to be weathered or even disappear.

The flow pattern of meteorites is generally zigzag and delicate, while many stones with flow lines are straight or semi-curved. There are also many meteorites that no longer have flow patterns, and the flow patterns of fresh meteorites are generally more obvious.

So choose neutral, how much iron does the meteorite contain and how much suction power, generally put the magnetite on the stone is not not not to fall, to have a very sticky stickiness, because the iron content of iron-containing meteorites is generally not very low, and there is also a non-chondrite meteorite that does not contain iron, the iron content is very small, and the lunar meteorite part is weakly magnetic.

In the nineties of the last century, only about 200 people entered the meteorite trade in the world, and the number of people participating in the meteorite trade has increased to more than 10,000 at present. The ever-expanding collection of meteorites, combined with their rarity, has led to the global price of meteorites climbing from a few dollars a pound to a huge amount comparable to that of diamonds.

The reason why meteorites are precious is that they are "cheap and high-quality" scientific samples, and their scientific value is extremely high. Meteorites are stony, iron, or a mixture of stone and iron from an alien planet.

What is a meteorite? It is a cosmic meteor that has left its original orbit outside the Earth or a stone or iron material that has not been burned out on the surface of other planets. There are many meteorite samples collected around the world, what are the characteristics of meteorites, and can they be easily identified?

We can easily identify the craters, crusts, magnetism, density, and streaks according to the pits, and as for the final confirmation, we also need to rely on some accurate instruments.

Meteorites descend through the Earth's atmosphere, where the surface of the meteorite burns, eventually producing a molten crust through which the stone can be determined whether it is a meteorite or not.

Who said that meteorites are anthenic and angular, and meteorites will be sharp and angular after entering the atmosphere.

Fart glass sometimes eats very low.

Answer: The six characteristics of meteorites are: 1. High specific gravity; 2. There is metal inside; 3. The surface molten shell is thinned due to atmospheric friction; 4. a round spherical shape; 5. There is an air mark on the surface; 6. It can be adsorbed by magnets. Meteorites, also known as "meteorites", are unburned stone, iron, or a mixture of rocky and iron materials that are scattered on the surface of the Earth or other planets by cosmic meteors or dust fragments that have left their original orbits outside the Earth.

If you have other questions, you can continue to ask Oh Dear, if not, please give a thumbs up Oh Pro, can you identify the question?

You need to go to a professional place.

Meteorites are generally characterized by shell melting, gas marks, etc., and chondrites or metal flashes at the damaged places, and the identification method is generally through appearance. When a meteorite passes through the atmosphere, it will generally melt away part of the surface of the meteorite due to the high temperature, resulting in a glass-like texture.

Meteorites are generally identified by appearance, in addition to shell melting, air marks are also a key point of identification, air marks are pits on the surface of meteorites, different shapes.

Meteorites are generally identified by their appearance, in which the flow line is the focus of identification, and the flow line is the radioactive line distributed on the surface of the meteorite.

More complex identification methods require the use of instruments, mainly to detect the composition of meteorites, this kind of identification is more in the case of basically confirming the authenticity of meteorites, to classify meteorites.

Summary. Hello dear, there are three main ways to identify meteorites: 1. Look at the molten shell, there will be a layer of black molten shell with a thickness of about 1 mm on the surface of the real meteorite; 2. There will be many air marks on the surface of the meteorite similar to finger prints, which are formed by the interaction between the meteorite and the atmospheric current; 3. Magnetic measurement, stony meteorites have low iron content and weak magnetism, while stony-iron meteorites and iron meteorites have strong magnetism.

Hello dear, there are three main ways to identify medium-burning meteorites: 1. Sell travel to look at the molten shell, the surface of the real meteorite will have a layer of black molten shell with a thickness of about 1 mm; 2. There will be many air marks on the surface of the meteorite similar to finger prints, which are formed by the interaction between the meteorite and the atmospheric current; 3. Magnetic measurement, stony meteorites have low iron content and weak magnetism, while stony-iron meteorites and iron meteorites have strong magnetism.

1. How to identify meteorites by looking at the molten crust chain, meteorites can be identified by looking at the molten crust, meteorites will produce high temperatures when they pass through the atmosphere, and the high temperature of lead will cause the surface of the fortune to melt and form a layer of black molten shell, the thickness of the molten shell is about 1 mm, which is one of the important characteristics of firm meteorites.

2. Look at how to distinguish the air-marked meteorite, in addition, you can also look at the air-marked, the meteorite will interact with the airflow in the process of falling, and the surface of the meteorite will also leave a lot of airmarks.

3. The meteorite can be identified by testing the magnetism, and the meteorite is mainly divided into three categories: stony meteorite, stony-iron meteorite and iron-searching meteorite, and the iron content of the meso-stone meteorite is low and not easy to be attracted by magnets. Whereas, stony-iron meteorites and iron meteorites have a high iron content and are easily attracted to magnets.

Dear, remember to take care of the protection when you go out, and protect yourself, here the teacher wishes you a good time.