the author forgot that lead crystal is useful for healing of hangovers...fill the crystal goblet with with the hair of the dog and, presto, no more hangover. and of course, putting a piece of granite over your friend's head will cure an achy toe, right after you drop the rock on his head...presto! achy toe forgotten! now, the most valuable one is so secret that I can't....well, just for all the nu wagers, rock hounds, crystal meth smokers and random wimdips....put a piece of rock salt (it is a crystal) under your tongue its guaranteed to do something....but I forget what!!!! AM SHANTY AM. (AM NOT!!!)