Iron-nickel meteorites (Canyon Diablo and Odessa samples above) are very heavy for their size (note 1cm cube) compared to other rocks you find in the same geographic location, and show surface evidence for pitting, ablation and even melting. My sample of a Shikote-Alein meteorite is dull red/black and very heavy. It doesn't have craters at all, but looks like it has been heated to nearly the melting point.
Other kinds of meteorites such as the 'stonies' above have more complex surface features. They might look like pumice, but they are much heavier and may not have many large pits.
Here are some places where you can view photos of actual meteorite samples, and perhaps studying these will give you an idea about the range of appearances and where your sample may fit-in!
Note...I do not personally recommend any of these companies in any way, I only provide their links because they carry photos of meteorites for you to look at.
Meteorites of Switzerland Inc. ,
Copyright 1997 Dr. Sten Odenwald
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