It has been postulated that people can't find mescaline because no one makes it. No one makes it because no matter how you look at it, the cost per dose is pretty high. I have made this comment before and i will make it again. Anyone who thinks that 8 hours of intense pleasure, excitement, reward, introspection, entertainment, rapture and revelation just isn't worth more than about 10 bucks has it all wrong but that is the single most evident reason why most of you can't get mescaline. A 450 mg dose of mescaline can be had in my area for about 35 dollars. About the price of a concert ticket. Still, most (the ones who have never tried it) won't pay that price.
Of all the hallucinogens I've tried I find mescaline to be the most warm and inviting. there is a body load (yes, even with pure) but it isn't much. There is some stomach problem but it just doesn't actually mean much to you when you start being carried away in what I would maintain is the most organic feeling, the most gentle, the most supportive and positive of all of the psychadelics.
Don't be fooled though, it is still quite capable of stinging those who use it frivolously. I highly encourage anyone interested in these sorts of experiences to do anything within their power to obtain some, arrange for a long day out in nature and blend with all things.
It is highly unlikely that that pill you took was mescaline. Unless it was in a capsule - a big capsule then it was not mescaline. You can tell mescaline from all other drugs after your first experience - it is not like mushrooms, it is less... befuddling. It is not like acid, it is kinder, warmer, more generous with your emotions, the patterns are (strangely) more... indian.
the crystals are long spicules that are not all that fragile, the color varies from a steel grey through a greyish off white. It has no smell. I thought once that the reason for the stomach discomfort was the needle like shape of the crystals so I ground it very very fine - and still had the stomach problems.
I think it is just the way things seem to go that of all the sacred chemicals, mescaline would make itself the most obscure, it is after all, the most blessed, by far.