Yup, rock hound here. I was even a member of the Gem and Mineral Society of Colorado. Although I can not tell you the names of all of them (Started collecting during my early years when sex, DRUGS and rock and roll were the main focus). I have quite the collection, some I bought and some I dug up my self in the mountains of Colorado. In fact our living room is devoted to them, unicorns, wizards and dragons. Lots of clear and smokey Quarts, Malachite, Amethyst, Tiger Eye, Apache tears, Geodes, Garnet and a small ruby specimen I found at Ruby Mountain in Buena (sp?) Vista Colorado.
As far as energies, yes I believe they have some powers but I do not spend much effort on them. Use to many moons ago, in fact I still think it was a dragon/crystal pendant that brought me and the wife together.