@FatemehTahereh,
How do you know you have a meteorite? Most meteorites are metallic. They are attracted by a magnet. They are heavy. They have holes produced by heat, these are called regmaglypts. Generally these arrive in one piece. These types of meteorites do not leave a streak over a rugged surface when rubbed against it, test it. The other types of meteorites, stony ones, are rarer, harder to spot and harder to identify. Because they can look like ordinary stones. But some of these can be attracted by a magnet too, very lightly. The best opportunity to identify one of these is when it has just landed, they ought have a dark lusty varnish. Not confuse with dessert varnish.