How to know the meteorite and the means used in it

Meteorites know meteorites as extraneous rocks on our planet; they descend from the sky in different sizes and shapes to collide with our land, and we often hear some people say they saw meteorites landing in front of them, or found one of them creating a gap in the earth. These meteorites have great scientific significance for scientists. To their economic importance. The average meteorites that fall daily on Earth are estimated at 230 meteorites, which means that the annual percentage of meteorites falling on us is 84,000 meteorites per year, ranging from a few grams to tons. Some tests to know the meteorite may sometimes confuse the ordinary man to differentiate between the meteorite that descended from the sky and the ordinary stone that is from Earth. However, there are some tests that can be performed on any stone that is suspected of being a meteorite. With reference to the need to carry out these tests in full, until the final examination and the decision is made

The shape of the stone and its appearance: There are meteoroids with a stone appearance, meteorites with an iron appearance, and also found meteorites known as mixed, where we find iron stone at the same time, and it is recognized that the meteorites by weight are usually heavier than rocks and ordinary stones, and affect the weather on Meteorites that fell more ancient than newly fallen; the old and has changed its outer shell due to the erosion suffered by time. Checking the impact of the stone magnetism: It is known that the meteorites in total in the composition of iron, so we have to pass the magnet on them, and if the attraction to him is evidence that it is not ordinary stone, but may be meteorite, but if not attracted to magnets are mostly stone ground. Checking the impact of stone by friction: We can conduct this friction test by rubbing the piece of stone suspected of being a meteorite, with a piece of ceramics such as those found in the floors of the houses, left a semi-black color as a pencil lead, this stone is a kind of magnetite, which is a normal stone but attracted to magnets, This stone is a hematite, a stone that is also ordinary and attracted to the magnet. If this stone does not leave any trace, it may be a meteorite, but some meteorites may leave a light gray effect on the ceramic. . Check the stone through the coolant: We lightly rub the piece of stone by cooled, by dissolving a light surface layer of this stone, and we work to monitor it in all its aspects, if we appear to the result of friction some shiny and metal fragments in the stone, it is likely to be a meteor. The stone is determined by nickel: meteorites are known of all kinds, whether stone or iron, as containing nickel. Therefore, Dimethylglyoxime is placed. If the stone is a meteorite, the nickel in it is transformed into a pink color, being affected and reacting to this acid. If it is not colored, it is undoubtedly nickel-free and is a plain stone