If the Grand Gallery was made of granite then it would have been a massively different job to construct as it's by far the largest chamber in the Great Pyramid. You seem unaware of this fact which, as I said, hardly recommends your other claims if you are so ignorant of basic facts about the Great Pyramid.
It strikes me as rather ironic that someone who regularly posts whole pages of gibberish with increasingly exaggerated claims could accuse someone else of doing the same when all I was doing was pointing out that you have made an easily correctable error.
If you don't like being corrected then check your facts more carefully before posting rather than just grabbing quotes from other people's websites that may or may not be right.