posted on Nov, 17 2013 @ 07:12 PM
At first glance, it certainly looks like granite, and considering the size and weight, that sounds about right for a piece of granite that size (lots
of it here where I live).
Meteorites are not granite. Granite forms deep in the Earth were the pressure on magma is great enough so that when it starts to cool the different
minerals in it solidify in to larger pieces, giving granite it's distinct appearance.
Most meteorites that we see are not formed that way (deep in the earth under pressure).
As for the depressions in the rock, as stated before, it looks like it was used as a primitive hammer for hitting large objects.