Archae Solenhofen wrote:

> It's coming from the Tura Limestone itself and moisture.....
> what evidence is there that this mineralization is the result
> of a modern phenomenon and not an ancient one? Other than it is
> observed on ancient hieroglyphics in the chamber and that when
> the chamber was first open precipitated mineral deposits were
> described to be on the surfaces of the limestone..........

Contrary to Egyptological opinion this process is most probably ongoing but
not the result of internal moisture. It is far more likely to be the result of
more two acre feet of water per decade striking the denuded pyramid above the chambers. Most moisture from visitors is not going to penetrate the
stone or have any effect.

I would expect things weritten on vertical surfaces to be less affected since
gravity will tend to pull the water down through the stone rather than out the
sides.