Whether it is a meteorite or not, whether this one is a meteorite or not

Hello! I went into your blog album and took a look, and I saw the following two descriptions of you:

A few years ago, I found a rock. It weighs 100 grams and has an irregular shape and angular shape. The outer layer has a black, smooth, shiny shell like glazed porcelain, and the inner layer has a different sand than the stone, and from the outside, it looks like a layer of lava formed by extreme heat.

There are vapor holes, the texture is hard, and there is no magnetic force.

I wonder if you picked it up from the ground or just picked it up on the road? From the ** point of view, these holes are not like the steam holes you said, but like the pits formed by later collisions with other harder objects. This is because the steam hole should be deep into the rock, and the edge of the hole has been left by high temperatures.

There are slightly greenish rings on the rocks, and I wonder if there are impurities left on the surface that have not been cleaned?

Have you taken a small amount from it and done other analytical tests?

Judging from the ** alone, one may be the particles formed in the process of making products at high temperature in modern factories (according to what you said, 100 grams, there is a sand-like substance in it), because there is no scale bar on your **, you can't infer its size, and the density of meteorites is generally larger.

If not modern, it's a bit like basalt (a type of magmatic rock).

It is recommended that you do an X-Diffraction analysis (only about 5 grams or so of fresh powder is required), the composition of which is easy to know.

It should be a meteorite, and it's hard to say which one exactly.

Meteorites, also known as "meteorites", are unburned stony, iron, or a mixture of stone and iron 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.

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.

More than 40,000 meteorite samples have been collected worldwide, in a variety of styles. They can be broadly divided into three main categories: stony meteorites (the main component is silicate), iron meteorites (iron-nickel alloys), and stony-iron meteorites (iron and silicate mixed relatives).

Meteorite refers to the remnants of meteorites that fall to the ground, which are composed of minerals such as iron, nickel, and silicate, and are also known as meteorite stones. Also early is a meteorite that contains more or all of the stony material. A large amount of organic matter such as ammonia, nucleic acids, fatty acids, pigments, and 11 kinds of amino acids have also been found in meteorites with high carbon content.

Identification methodsAccording to the various characteristics of meteorites, preliminary identification can be carried out: morphological characteristics: meteorites generally show irregular shapes; Meteorites with surface structure and newly landed meteorites generally have a layer of black or dark brown molten crust less than 1 mm, and also have a flow pattern or streamline structure; Composition: Meteorites generally have a greater specific gravity than Earth's rocks due to their fe-Ni metal content (generally, meteorites have a specific gravity of at least; Structurally: 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. [2] Potential meteorite characteristics number one: fusion crust and color.

When meteorites pass through the atmosphere, their surface ablates and produces molten crusts, most meteorites have a black molten crust, but meteorite molten crusts that have fallen more than a long time ago can turn dark brown due to weathering. It is important to note that glass meteorites (also known as "thunder ink") may have other colors, but glass meteorites are not meteorites, and they are generally thought to be formed by the cooling of surface material and meteorite debris when meteorites hit the ground. Second:

Appearance and density. Meteorites are rarely roughly spherical or have sharp corners, and most meteorites are irregularly shaped, but the corners are rounded. Meteorites rarely have naturally occurring cavities.

The vast majority of meteorites are heavier than the average earth rock of the same volume, iron meteorites are about twice as heavy on average, and stony meteorites are also doubled. Third: regmaglypts.

Most meteorites have fairly smooth surfaces, and many have air marks on the surface that resemble thumb presses. Fourth: magnetism.

Most meteorites are more or less magnetic, with iron meteorites being especially noticeable. If the above four points can be satisfied, then the stone can be taken to the laboratory for further identification; But if the majority is not satisfied, then the stone is likely to be just an ordinary stone. When it comes to laboratory testing, the most commonly used "magic weapon" is to detect the nickel content in the stone.

Nickel is rarer on Earth but is widely found in meteorites. According to the argument here, it would cost only a few dollars to go to a lab for such a test, but if it can be proven that a potential meteorite in front of you has a nickel content of between 3-10%, it is almost certain that it is a meteorite.

Not quite like that. It is estimated to be iron slag.

I don't know, I'm sorry, I'm here to do the mission.

Judging by your **, this is not a meteorite.

To determine whether a sample is a 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% to 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% of meteorites can be attracted by magnets.

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

Came and looked at **, in my experience, these are not meteorites. Wind swept stones. This is a stone left over from the volcano.

My stone has a width of 40 centimeters, a length of 30 centimeters, and a net weight of 70 kilograms.

No, it's ordinary pebbles.

Probably not....There are no pores, and the color is not right....