How to identify black meteorites, how to identify meteorites

To identify whether a sample is a black meteorite, the following aspects can be considered:

1. Molten crust: The meteorite has to pass through the dense atmosphere before falling to the ground, and the meteorite rubs with the atmosphere during the landing process to produce high temperatures, causing the surface to melt and form a thin layer of molten crust. As a result, the surface of the newly landed meteorite has a black molten crust with a thickness of about 1 mm.

2 Surface air marks: In addition, due to the interaction between the meteorite and the air current, the surface of the meteorite will also leave many air marks, like finger prints.

3 Internal metals: Iron meteorites and stony iron meteorites are composed of metallic iron, which has a high nickel content (5 10). Chondrites also have metal particles inside, and fine metal particles can be seen on fresh fracture surfaces.

4 Magnetism: Because most meteorites contain iron, 95 meteorites can be attracted by magnets.

5 Chondrites: Most of the meteorites are chondrites (90% of the total), and these meteorites have a large number of millimeter-sized silicate spheres, called chondrites. Round chondrites can be seen on the fresh fracture surface of chondrites.

Summary. Meteorite Foreign name Stony Meteorite Alias Celestial Alien Category Rock and Mineral Main** Asteroid Belt Because meteorites are from outer space, meteorites need to be identified by instruments to determine their authenticity, 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.

Hello, I am happy to answer your questions, identification methods of meteorites: 1. Appearance, the appearance of meteorites has gas marks of different sizes, and if there is no it, it may be fake; 2. Specific gravity, the specific gravity of meteorites is larger, there is a sense of weight in the hand, and the hand of the fake stone is light; 3. Magnetism, meteorites have a certain degree of magnetism, which can attract magnets; 4. Smell, meteorites have a special taste, which ordinary stones do not have.

Meteorite Foreign name Stony Meteorite Alias Celestial Alien Category Rock and Mineral Main** Asteroid Belt Because meteorites are from outer space, meteorites need to be identified by instruments to determine their authenticity, 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.

Summary. 1.Appearance, the surface of natural meteorites will form many air marks of different sizes, and there are also many raised parts, which are distributed in irregular shapes; Whereas, the surface of the fake meteorite has almost no air marks, and the raised parts are flaky.

Hello, dear, methods for identifying meteorites: 1. Appearance, the appearance of meteorites has air marks of different sizes, and if there is no one, it may be fake; 2. Specific gravity, the specific gravity of meteorites is larger, there is a sense of weight in the hand, and the hand of the fake stone is light; 3. Magnetism, meteorites have a certain degree of magnetism, which can attract magnets; 4. Smell, meteorites have a special taste, which ordinary stones do not have.

1.Appearance, the surface of natural meteorites will form many air marks of different sizes, and there are also many raised parts, which are distributed in irregular shapes; Whereas, the surface of the fake meteorite has almost no air marks, and the raised parts are flaky.

2.Specific gravity, the density of the meteorite is around, there is a small amount of metal substances inside, the specific gravity is large, and you will obviously feel a certain feeling of falling when you weigh it carefully on your hand; The density of the fake meteorite is small, and the feel will be much lighter.

3.Magnetism, the meteorite contains a small amount of metallic substances, mainly iron, which has a certain magnetism and can easily attract magnets; However, there is no metallic substance in the inside of the fake meteorite, there is no magnetism, and it cannot attract magnets.

4.Smell, by smelling the smell to identify, generally no matter how long the meteorite has fallen, when it encounters moisture in the air, it is easy to produce a special burnt smell, just like the smell of burning, and ordinary stones will not appear this smell.

Like a meteorite. In the walls of our house, the wall was very hot last time, and when I dismantled it, I saw that this substance was burning like coal. The wires in the walls were burned.

It looks like ah. The last time I got it down from the wall, it was all in pieces.

Dear, you can go to the store to appraise, there are special appraisal stores.

Dear, hello for your query results are, meteorite identification method 1, observation surface method. First of all, meteorites are generally irregular in shape, and secondly, meteorites pass through the atmosphere during the landing process and friction produces high temperatures, so the surface of the meteorite has a layer of black molten shell formed by burning and the gas marks left by the friction of the air flow, and it also has a flow pattern or streamline structure. 2. Magnet is an experimental method.

Meteorites are basically divided into three categories, namely stone meteorites, stone iron clouds, and iron meteorites. Among them, the magnetism of stone meteorites will be relatively small, and it is not easy to be attracted to magnets. However, the iron content in stone iron meteorites and iron meteorites is relatively large, and the magnetism is relatively strong.

3. Observe the chondrite method. On the fresh section of chondrites, fine chondrites and the matrix between chondrites can be observed with a magnifying glass, and fe-Ni metal and meteorite iron can be seen. Iron meteorites that corrode the polished surface of iron meteorites with an alcohol solution containing 2% concentrated nitric acid can show the Vickers Titan structure.

The structure of a meteorite is dense and it is not possible to have structures such as foamy, porous, or slag structures.

Summary. First, the observation of the appearance of the method we identify whether a stone is a meteorite, the first thing is to use the naked eye to visually inspect, the main aspect of observation is to see whether it has the characteristics that a meteorite should have, that is, the external molten shell, air mark, melt line, etc. Whether there are pellets, metal flashes, etc.

Whether there are pellets, metallic flashes, Vickers phases, etc. In addition, it is necessary to combine what is known'Meteorite-like earth rocks'to compare.

Hello, happy to ask for you, your question is: how to identify meteorites The answer is: the information is as follows.

First, the observation of the appearance of the method we identify whether a stone is a meteorite, the first thing is to use the naked eye to visually inspect, the main aspect of observation is to see whether it has the characteristics that a meteorite should have, that is, the external molten shell, air mark, melt line, etc. Whether there are pellets, metal flashes, etc. Whether there are pellets, metallic flashes, Vickers phases, etc.

In addition, it is necessary to combine what is known'Meteorite-like earth rocks'to compare.

The surface will be caused by the collision of black molten crust gas currents formed after incineration'Airmarking'(The air mark is generally multi-fingered, and the meteorite appearance resembles an impression pressed by the thumb) is partially with'Melt flow'

2. The magnetic detection method uses one end of a thin wire about 10 cm long to tie a small piece of magnet, pinch the other end of the thin wire with your hand, and then slowly approach the object to be measured to detect whether it is magnetic.

To identify whether a stone is a meteorite, we first need to visually inspect it with the naked eye, and the main aspect of observation is to see whether it has the characteristics that a meteorite should have, that is, the external molten shell, air marks, molten streamlines, etc.