If you love crystals, especially quartz crystals check out crystalvaults.com. They have thousands of listings with photos, describing every possible type of quartz configuration and form as well as free e-books about metaphysical crystal uses. See their “Free Guides and Resources”. What a great resource!
http://www.crystalvaults.com/guides-crystals/
If you love big crystals, and I mean BIG, check out the the works of Lawrence Stoller – amazing and a beautiful website!
BC Rockhounder Magazine 