You found a meteorite?

You found a meteorite? The most likely answer to the question – you are not. The ability to find a meteorite is extremely small.
According to the data of the International Society for meteor and planetary science, there were four recorded meteorite falls in Croatia so far, four in Slovenia, in Serbia and Bosnia-5 falls.
Almost all meteorites are found in deserts or in Antarctica.
So far, they recorded 45,458 worldwide, of which 68.4% in the Antarctic, Africa 14.8%, Oman 6.8% North America 4%, the rest of the world 6%. You have seen  this  stone fell from the sky?
The most likely answer to this question is – you have not. Meteorites enter the atmosphere with a speed of 14- 45 kilometers per second, at that speed they are burning which slows them down. Combustion stops and unexposed falling from a height of 5-20 kilometers at a speed of 150-300 kilometers per hour.
At that speed and altitude is not possible to see or to follow such a small object.
Meteorite (except very large scale) will not leave a crater and they will not be hot or incandescent.

 

Cuts -images with examples is on the bottom of the page
If we cut edge of the stone meteorites at the cross section will be seen
metal glittering dots or even larger pieces of iron and nickel.
On the cross section of the iron meteorite, if you first coat section with nitric acid or
iron chloride can be seen Widmanstatten pattern.
In pallasite the section you can see the transparent crystals of olivine minerals. Glassy crust
The thin outer layer is usually 1 to 2 mm thick caused by the melting of meteors by passing through the atmosphere.
The bark can be chapped and partly removed, but visible parts will be glassy.
If the layer is much thicker; If the bark is brighter than the inner part, or if the bark look to much burned and melted, this is  not a meteorite.
How to determine  meteorite? Magnetism
Of all the meteorites 94.7% are stony meteorites, 4.4% are iron meteorites, 0.6% mesosideriti and  0.3% are pallasite. Almost all will attract a magnet, because 95% of all meteorites contain
a large proportion of metals iron and nickel.
Meteorite will show magnetism when you try with  normal magnet.
It is not necessary to use a strong neodymium magnet.
Some meteorites are not magnetic, but lots of rocks from the earth’s is magnetic.
Depressions 
On larger pieces of meteorites there are usually visible mild depressions.
It is a gentle imprints in the meteorite that likely arise due to the pressure of the hot gas. Holes
If the stone have a lot of holes or small pits it is not a meteorite. Edges
Meteorites have rounded edges, unless they are later snapped, all sharp and protruding parts are melted when passing through the atmosphere. Shape
When they passage through the atmosphere meteorite takes slightly streamlined shape, and looks very compact.
The stone, which has a flat surface or is too thin  is not a meteorite.
If you notice the layers, straight , curved lines or geometric crystallization this is not a meteorite. Ohm
By measuring the electrical resistance of the iron meteorite multimeter will show the resistance less than 100 or even less then 10 Ω (ohm). Streak
If the meteorite scratch the ceramic plate, it will remain very weak until no trace, it leaves a very visible red mark it is not a meteorite. Specific gravity
A specific gravity can be measured if the sample is first weighed on a precision balance, then it is necessary to weigh the sample immersed in water.
Stone meteorites have a specific gravity of 3 to 3.7 usually 3.4.
Iron meteorites have a specific gravity of 7-8.
If the stone (it is not iron meteorite) has a specific gravity less than 3 or greater than 4 then it is not a meteorite

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