I would say the minerals in the rock interact with trace whatevers in the water a bit, even create little teeny electrical charges, add positve or negative charges etc thus changing the 'structure' of the water. It's not really a 'mystical' thing going on there... anyway... a friend of mine has these really huge pieces of crystals of all sorts, dozens upon dozens of them, gorgeous, he displays them all over his house, big 6,10 and 12 inch high pieces, all different colors... he goes rock hunting for them in New Mexico or somewhere in that area, brings them back by the trunk load.
The stuff around our house by the ton is probably more accurately described as 'quartzlike', I found the the one in the flower bed. Probably it is some sort of marble if you polished it. there are huge rocks of it all over the place the here, bigger than your car. The mountains are made out of it. But it got my interest, I like rocks, so I found these two pages that might interest you too:
http://www.emporia.edu/earthsci/amber/go336/junod/quartz2.htmhttp://comp.uark.edu/~sboss/vrockbag.htmOur quartz here looks like the massive quartz rocks on the virtual rock bag page, and lots of calcite too. According to the student page, smokey quartz has aluminum in it, pink is thallium, both rather poisonous to eat. We have a lot of pink in the rock here hmmm.
I have some really neat rocks. I should get a new rock pick. It would be really nice to find an inexpensive rock tumbler that did the job in less than 3 days too. I think the kid broke the one we've got, I vaguely rember something about her pouring carborundum mixed with water into the thing and getting it clogged up.
I should probably get a better water filter too.
