- Mineralogy Database - A large listing of minerals. The listings are sorted based on all kinds of identification techniques like Chemical Composition, Crystallography, and X-Ray Powder Diffraction.
- RealGems.org - A new website that combines learning materials, a large database of stones, and opportunities to buy from dealers.
- Wikipedia's Article on Minerals - Wikipedia is an online encyclopedia/database for everything and is modified by users. This is their page on minerals.
- Wikipedia's Long List of Minerals - A very large list of minerals and links to information about each one. A complete listing is also available.
- William Holland's School of Lapidary Arts - A week-long retreat for Rockhounds. The non-profit school teaches classes in: Beading (seed & reg), Cabochon Making, Gem and Mineral Identification, Gem Tree Making, and many other skills and crafts.
- Virtual Museum of the History of Mineralogy - An online index of antique minerology and crystallography books and instruments.
Other Rock Sites
- Rocks and Minerals Magazine - A mineral publication focusing on mineralogy, geology, and paleontology. The publication is over 80 years old.
- Rock Food Table - The offical homepage for the famous Rock Food Table, a table holding many rocks that look like food.
- Absolute Quartz Crystals - Focuses on the finest quartz crystals and mineral specimens for dedicated crystal collectors and metaphysical crystal users.