anyone has even superficially studied the limestone monuments at Giza KNOWS that Limestone is the most variable of rock
Where are his numbers to back up this INCORRECT generalisation. where is the description of the delicate means used to obtain the sample(oops smash, oh well)?
They aren't there. Whatever they analysed and how they analysed it affects the validity of said analysis.
It's almost as if they were sneaking the sample out...why else the botched procedure?
Why no photo of the sample being obtained?