Don't pay any attention to that drunken bum, Crazy Looie.
I'd suggest taking the meteorite to the Geology department of a local university to see if they can give you any feedback as to its composition, what use it could have, and what value it holds, and to whom.
There is a very brisk business in meteorites and some of the rare types bring high prices. As usual Rodentman has a great suggestion. But you might also want to check with a real meteorite expert like Michael Blood in San Diego. His url is: http://www.michaelbloodmeteorite s.com/
Be a little cagey with the dealers and if they give you an offer be sure of your ground by checking with more than one. I've worked with Michael a couple of times and know he's honest -- but a deal is a deal. The business is very competitive. Also, if it's a desirable type, museums often have budgets to buy things like that. So check it out thoroughly and don't quickly accept the first offer.
There are a number of other dealers. PM me if you need the names of a few more.