The San Diego Natural History Museum continues to explore the biodiversity and evolutionary history of southern California and Baja California with research, education, exhibits and community involvement.

Our rock shop offers a selection of mineral crystals, gems, birthstones, semi-precious stones, amethyst tables, trilobite fossils, rocks, dark crystals, healing stones, fire mountain gems, opal gems, wholesale stones

Crystal and mineral gallery and rock shop store, healing stones and crystals. Quartz amethyst and crystals for all of your mineral needs. The premier source for crystals and minerals on the web. A great place to buy crystals.

stuart and donna wilensky finest mineral specimens for collectors, minerals for the most discriminating collectors

Online mineral dealer featuring fine gem and mineral specimens for the discriminating mineral collector and lapidary. Mineral specimens for sale in all sizes and price ranges. Extensive world-wide mineral specimen inventory.

Bob's Rock Shop is the net's first 'zine for mineral collectors, rockhounds and lapidary hobbyists, now joined online by Rock&Gem magazine. Among the features to browse here the free use, form-accessible 'Rock Trader' classified ads; downloadable freeware and shareware software for rockhounds; the 'Rock Net' online bulletin board; several collections of entertaining and informative mineralogical articles and essays; a collecting site catalog for the United States and Canada; extensive lists of upcoming shows, US clubs, and links to kindred sites; rockhound tailored visitor information for Tucson, Arizona, including the annual Tucson Gem and Mineral Show; and much more.