Why this rock is probably not a meteorite:
This rock does not have a fusion crust
and the exterior is not smooth like a meteorite.
The rock was found in a corn field in Pennsylvania. It is strongly
attracted to a magnet. It has holes, however. Stony meteorites that
contain metal (chondrites) don't have holes or vesicles.
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What is it?
Perhaps it's a piece of slag. Slags typically have vesicles because
they were at least partially molten and there was gas in the melt.
Chondrites do not form from a melt, which is why they don't have vesicles.
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