Most LF "stones" dissolve ... it appears to be a reverse process of what happens inside intestines.

That is a fairly strong assertion, one that implies that somewhere, somebody has been capturing and subsequently analyzing most stones. Okay, throwing a bone to our social engineers, at the least that implies that Gallop has conducted a poll of 2000 to 3000 people and by extension is claiming that sampling is sufficient to be applied universally to all people, all stones. With an estimated 6 billion but ever dwindling humans on this planet, does anyone care to notice how many stones those most stones potentially are? I am not aware that the massive, global stone analyzing project was in progress as necessary for rendering the findings that such an assertion could be legitimately based upon. Kinda reminds of Geroge Carlin's debunking of the old saying "down the tubes". What tubes? If such tubes really did exist, wouldn't at least some of the people of the world, if not many, have noticed such tubes? PSSST, hey Joey, come over here and get a look at these giant effing tubes! Likewise, what most stones are being talked about here, after which the assertion includes that these most stones appeared to do something; appeared to whom? The great most stones god in the sky? To the contrary, it has been my observation that, generally speaking there is an informal project ongoing for quite some time where by people at large do not pay any attention to, do not do any genuine study of things prone to coming out of their body, to include stones.

This is just my opinion, one that can also be considered a strong assertion, but my opinion is that generally speaking, most people are not qualified to speak on behalf of all the other most people of the world outside of themselves. This said, I am willing to accept as true what Steve666 has to say about the stuff that came out of his body. The fact that he was willing to put forth the effort demonstrated speaks well to the situation that he is somebody with a genuine interest of studying, so as to know, what is going on inside his body. Minus the necessary leap of faith, it also requires a naked assertion to extend his findings to all other people "most stones" in this world. I don't mean to volunteer extra work/labor for Steve666, but I do wonder: is he interested in the people of the world sending him samples of stuff taken out of their body, each of them, to conduct examinations (exposure to sunlight) similar to what he demonstrated with his own? I'm just putting this out here... sort of thinking out loud, just in case there are people genuinely interested in trying to develop a legitimate approach to understanding most stones.