OK-So I admit I'm pretty much a NEWBIE! I was looking at doing something different in our kitchen and most of the candy/chocolate recipes recommend spreading/crystallizing/etc on Marble. I'm just curious, does Granite do the same thing? Where we are granite is much less expensive since we've got lots around us.
Yes, you can use granite in place of the marble. The purpose of the marble slab is to cool the chocolate mass quickly, so any non-porous material that does the same will work.
If the marble is only for tempering/pre-crystallizing the chocolate, then you may get away without using it at all, if you learn how to use the seeding method to temper.