Your item does not have any characteristics common to meteorites. It appears to be a piece of slag. Less likely, but still possible is volcanic, but definitely not a meteorite.
1st - I noticed this was your very first post - so, Welcome Aboard Ale! You didn't list your state (or country) in your profile. So, you might consider jumping over to Sub-Forum: Select Your Area.... for information (i.e., clubs, hunts, finds, legends, maps, etc.) directly related to your state (or country). You might also consider adding your state (or country) to your displayed profile (SETTINGS -> EDIT PROFILE) - members may have more success helping you (your location may help, etc.)...
1st - For future reference - here are a few informative articles talking about meteorites...