Ok, so I spent yesterday in Glory Hole cave. It was easily the most beautiful cave that I have seen firsthand. I got to wondering about the different conditions and mechanisms by which all of our favorite pretties are made. As an engineer I don't know much about geology, but I really want to learn more. Can anyone reccomend any good resources - online or otherwise?
Also, check out the pics I took here:
http://photobucket.com/albums/e80/adambyrd/Glory%20Hole/
They're not the best (disposable camera), but whatever.