You will now go around to random places with a metal detector and shovel and look for over sized rocks that came from space. Seem easy enough?
I didn't think so.
The chance of you finding large meteorites is so slim that you would have a better chance of guessing their next door neighbors iPhone 4s passcode. (4 spots 10 possibilities per = 10000 possible codes.)
There is however a much easier way that I will now show you how to do. The biggest material it requires? Your local beach.
You will be collecting dust but after a while, it collects.
This is a fun novelty to collect and have on your office desk as well as also proving to be very cool. I mean, how many people get to say "I have a meteorite on my office desk." ?
Step 1: What!? No Metal Detector!?
1 local (or very far away) beach
Step 2: The Element of Surprise
Flip one bag inside out. Place the neodymium magnet inside.
Have the other bag opened and ready to store your findings.
This is you search device.
Step 3: Collections.
Now, go to a beach and take an object to flatten out some of the the sand a bit. Your hand will do just fine with that. A flat surface will allow you to collect more dust.
Step 4: Done.
Pull the magnet out of the bag to release the findings into the second bag. It will take a while but it is rewarding in the end. You may notice there are some impurities (sand) inside of the bag. I am trying to find a way to fix tha and will update soon.
Although what you say is true, over certain periods of time as meteorites will impact and they enter Earth's atmosphere, they burn up into dust. A beach is a ideal spot to collect the dust because the sand will not absorb the dust.