Many people on the Internet claim to have picked up a meteorite, how can you tell if the stone you p

The earth is constantly hit by space rocks, when the space rocks fall to the earth, most of them will be burned up by the atmosphere, even if they are lucky enough to avoid the burning, most of them will disappear into the ocean, only a small part will fall to the land, even so, so far more than 40,000 meteorites have been found and numbered in the world. However, the meteorites currently found are definitely only a small part of the earth's meteorites, and there are countless meteorites still waiting for people to discover, a meteorite is worth a lot, how to correctly identify meteorites is the premise of discovering meteorites.

1. Most meteorites basically contain metal iron and nickel, so meteorites are magnetic and can usually react with magnets, and the surface of meteorites is mostly smooth.

2. The iron content of meteorites is relatively high, so meteorites will be denser and heavier than earth rocks of the same size, and the weight of meteorites is about three times that of ordinary rocks compared with meteorites of the same size.

3. When the meteorite falls into the atmosphere, due to strong friction with the atmosphere, it begins to heat up and burn violently, so that the outer surface begins to melt, and a thin layer of black and brown coating will be produced on the surface, which is called molten shell. However, molten crusts are fragile and can be easily weathered, so older meteorites usually disappear as long as the molten crust disappears.

4. There are "thumb prints" on the surface of the meteorite, when the meteorite enters the atmosphere and begins to melt and erode, due to the uneven melting, it will cause deep erosion in some areas of the meteorite, and less erosion in some areas, which looks like a mud block dug by a spoon, and also like plasticine rubbed by a child, but the meteorite is much harder than plasticine.

5. Meteorite stripe streamline, this feature usually exists on the body of iron meteorite, the surface of the iron meteorite may oxidize with light red stripes, but this stripe is drawn on paper, usually does not leave traces, if traces are left, it is basically the earth's primary hematite and magnetite.

The above 5 characteristics are usually the prerequisites for the identification of meteorites, and if all 5 conditions are met, there is a 95% probability that they belong to meteorites. However, there are many kinds of meteorites on the earth, and the large classification can be divided into several small categories, and the appearance characteristics of each category are obviously different, and the identification methods of meteorites of different classifications must be different, we ordinary people only need to understand the above five points, if you feel that a certain stone is like a meteorite outdoors, you may wish to take a photo to be confirmed by experts. But it is also necessary to pay special attention to the fact that meteorites are very similar in appearance to quartz stone, cinder, volcanic stone, etc., so special attention should be paid when identifying.

You can look at the shape of this stone, the shape of this stone is very irregular, if it is particularly strange, it may be a meteorite. It is also necessary to see whether the stone has a molten shell, but also to see the density of the stone, whether the stone is magnetic, whether it will bend, and whether the surface of the stone is granular, so that you can judge whether your stone is a meteorite.

It can be judged according to whether the meteorite contains magnetism, according to the iron content of the meteorite, according to the molten shell on the surface, and according to the surface of the stone, the composition of the stone.

Meteorites are generally uneven, and the surface is very rough to the touch, which is probably a meteorite.

Real meteorite sightings, at a glance.

<> there is no magnetic specific gravity.

According to the appearance of the stone, look at the air mark of the stone, look at the pit on the stone, look at the surface of the stone, look at the metal inside the stone.

Pick up a stone that feels particularly light closely, and the surface looks very dense and non-magnetic, which is the exception of the universal, can not be absolute, whether it is a meteorite or not, it is worth collecting.

There are too many self-named meteorites on the Internet, especially there are dozens of meteorite diamonds, an amazing number, and what meteorites, quartz meteorites, black diamond meteorites, especially basalt lava rocks are really overwhelming and called eyewitness meteorites, hey, I'm really speechless, if you tell him no, he will kill you.

Many people claim to have picked up meteorites, how can they tell if the stones they have picked up are meteorites?

Observing the molten crust, the meteorite reached a speed of more than 11 kilometers per second in the fall, and the friction with the atmosphere generated a high temperature of more than 3,000 degrees. The surface of any matter on Earth melts in an instant. Therefore, the surface of a real meteorite does not have uplifted rock particles, and generally does not have sharp horns, most of which resemble the streamlined shape of water droplets.

Meteorites fall at high speed and the molten crust forms molten streamlines, and no matter what form the meteorite falls, the fluidity of the melt streamlines is very strong. Any meteorite that falls in any form will have one side hit the ground first to form an impact surface. Because the surface of the meteorite is subjected to a high temperature of more than 3,000 degrees Celsius during the fall, the rock in the molten crust is gradually subjected to high temperature from the outside to the inside, and most of the impact surface will be deformed when the meteorite hits the ground.

There are two types of meteorites. Something that fell from the moon, something that fell from the stars. Lunar meteorites are very expensive, 10,000 grams.

The stars are not worth it, they are not worth it. The lunar meteorite is actually a black magnet with more than 20 mineral elements, iron, manganese, zinc, etc. You yourself can firmly inhale meteorites with a magnet.

Shows that it is true. Meteorites, iron meteorites, and iron meteorites are also easy to identify. Because whether it is a planetary meteorite flying from **, he must have a shell and structure that melts the shell very high and burns it out in the process of falling.

The easiest way is actually to trust the instrumental inspection of a professional geological department. Go to the geological department to do a little test to know, most of the things that are now regarded as meteorites ** or burned on the market have nothing to do with real meteorites, the circle of meteorite collections is very small, and their collections and grades are in a stage that ordinary people cannot understand. In addition, the trading of meteorites also varies according to the high and low levels of the meteorites and is not as strongly supported as the market.

The value of meteorites with special materials of real meteorites is scarce, and not all meteorites are very valuable.

1.Look at the surface for the shape of the stomata and airflow, 2Meteorites have a higher density and more iron content, and with the same volume of iron ore, meteorites are heavier, 3The surface of the meteorite is angular-free and relatively rounded.

Only judge the meteorite by whether there are air marks and burn marks on the surface, I dare not agree, meteorites hundreds of millions of years ago, carried by the force of nature, most of the meteorites on the appearance have worn off the gas marks.

It can be taken for inspection. The composition of meteorites is not the same as that of ordinary stones.

Meteorites belong to extraterrestrial objects, the composition of meteorites is very different from the stones on the earth, the density of meteorites is generally denser than that of stones, and after atmospheric ablation in the process of falling to the earth, the color of meteorites is generally darker.

If a person (descending heart) painfully attaches the meteorite to this part, if after 15 minutes, the pain does not decrease or disappears, it is not a meteorite.

Many people claim to have picked up meteorites, how to determine the authenticity of meteorites? The color of the molten shell is mostly black and gray-black, and there are light colors, but there are few. The molten shell is independent and formed by instantaneous high temperatures, and the molten shell usually has a contrast with the internal tone, and the texture is completely different.

Meteorites that have lived in the area for a long time will be the first to peel off the molten crust due to changes in temperature, wind and sand, etc., and it will look like a 'bald areata'. Others are completely detached and unrecognizable. Of course, fresh molten crusts may also see melt flow lines, as well as molten condensation caused by a sudden drop in surface temperature after a crash.

So stones that look black and smooth are not meteorites.

The basic characteristics of meteorites are often seen on the Internet, but the identification of meteorites is not only to look at the basic characteristics, but also to identify the internal structure of meteorites, there are many external characteristics of meteorites have been lost, but the internal structure exists, some people think that meteorites are very heavy, which is the difference between earth rocks, but meteorites also have light ones, which many people do not recognize, and they do not recognize.

Although meteorites are formed by aggregation under vacuum and pressure, the addition formed by the burning of the inner core of the asteroid during the operation of the celestial body is very light, and the material that is squeezed to the periphery of the inner core is burned material, and the inner core is rolled by metallic material, and the surface of the iron meteorite we see now is cratered, and the part of the inner core is melted and squeezed into the surrounding slag.

The stony-iron meteorite has not evolved into an iron meteorite, that is to say, the stony-iron meteorite has not yet formed an iron meteorite, strictly speaking, the stony-iron meteorite is in the star core, and the iron meteorite is in the core, and there is a core in the star core. However, there are more chondrites in the upper mantle and non-mantle parts, and there are more chondrite meteorites in the upper mantle part, while there are more stony materials formed by pressure in the lower mantle part, and chondrite meteorites exist in this area.

In fact, the easiest way is whether there is a molten surface, because all meteorites are celestial bodies that are attracted by the earth's gravity when they are close to the earth, and fall to the earth. Therefore, to distinguish a meteorite, it is necessary to see whether the surface is like a molten surface after steelmaking.

I think we can judge the authenticity of a meteorite based on its color, material, hardness and appearance, but if you don't know anything about it, then you can find a professional to help us determine it.

You can look at the size of the meteorite, the energy of the meteorite, the composition of the meteorite, the color of the meteorite, the temperature of the meteorite, and the texture of the meteorite.

The authenticity of the meteorite should be judged from its weight, hardness, material, gloss, temperature, color, and structure of the meteorite.

To determine whether a meteorite is real or fake, you need to ** its color, internal structure, shape, texture and temperature.

<> airmarked, dissolved shell, orientation often obvious, containing zirconium, strontium, barium, exotic elements, lunar meteorite.

There are too many fake meteorites, and none of them can be seen.

Play by yourself, don't care about him so much.

I also have one, and it's hard to find a major.

Am I a stone iron yunshi?

When a meteorite falls, it is compressed by friction with air and then heats up, and the surface melts after being burned, forming a molten crust. This layer of molten shell is usually black. The strong interaction between the atmosphere and the meteorite, which is able to form a structure called an airmark on the surface of the meteorite, is a very shallow crater that exists on the surface of the meteorite.

There are two types of meteorites that have certain magnetic properties and can be used as a basis for judgment.

Those meteors that come from outside the Earth fall on the Earth, and if they are not burned out in the atmosphere, they are meteorites when they fall to the ground. Most meteorites fell on Earth thousands or even tens of thousands of years ago. If we are going to determine whether a stone is a meteorite, we can judge it from its appearance, rock properties, and chemical elements.

The first is the appearance of meteorites. Meteorites move at a very high speed relative to the Earth when they fall, at least eleven kilometers per second. If you travel at this pace, it will take less than two minutes to get from Beijing to Shanghai.

When a meteorite rushes into the atmosphere at such a high speed, the meteorite itself is compressed and heated up by friction with the air, and the temperature of the surface layer of the meteorite is higher than that of the surface of the sun. When a meteorite is burned, the surface melts, forming a molten crust. The color of this layer of molten crust is usually black, and over time, the black molten crust on the surface of the meteorite will become lighter with weathering, and finally it will peel off completely.

In addition, the strong interaction between the atmosphere and the meteorite can form a structure called an airmark on the surface of the meteorite, which is a very shallow crater that exists on the surface of the meteorite. Because the meteorites themselves are different in size, these air marks vary from the size of the thumb belly to the size of the palm. Because meteorites tumble in the air during landing, not every meteorite will have an air mark on it.

The vast majority of meteorites are stony meteorites, and the most common of the stony meteorites is chondrites, and we can see the chondrite structure in the profile of the meteorite. There are two types of meteorites, one is iron meteorites and the other is stony iron meteorites, which have a certain magnetic properties, which we can use as a basis for judgment.

Meteorites that have neither chondrite structure nor magnetism are the most difficult to judge, such as lunar meteorites, Vesta meteorites, Martian meteorites, etc. To determine these meteorites, it is necessary to identify them by professional astronomical research institutions.