I had a dream of granite but not just any granite look at this link
http://en.wikipedia.org/wiki/Granite
and look for the pic on the right column that says Yosemite granite on it and this rock I dreamt of with symbols on it and I drew some of the symbols down but I was wondering,is there any use in alchemy for this specific kind of granite.Any info on this will be helpful like the composition or maybe the use of it if anyone knows.