Geology Adventures
Founded in 1983. Book rockhounding field trips for clubs and organizations.
http://www.geologyadventures.com/

Kreigh's Web Resources
A large collection of links and original information for Rockhounds about geology, minerals, fossils, lapidary, rock clubs, and other related subjects. Many dealer sites have also been included.
http://tomaszewski.net/Kreigh/Minerals/MineralLinks.shtml

Minerals, Specimens and Crystals
Online link direct to the mines and lapidary shops for mineral specimens and crystals, display specimens, unique decorator and collector pieces.
http://www.mineralminers.com/html/mineral_specimens.htm

Nikolay Gospodinov Collection
Bilingual Russian and English language site with photos and information on the mineral and fossil collection of Nikolay Gospodinov.
http://nikolaygospodinov.tripod.com

Cape Cod Rocks
Pictorial museum, exhibiting gems, fossils, rocks, and mineral specimens.
http://www.capecodrocks.com/

Hinkle's Rock Shop & Opal Mine
Specialize in Oregon thundereggs as well as various other Oregon materials. Plus home for the Rock Shops Opal Mine. Includes sharp photographs.
http://www.djwd.net/members/Thundereggs/

Virgin Valley Opals
Includes collection sites, geology and history of the area.
http://www.goldnuggetwebs.com/VVOPALS

MinMax
Searchable, interactive database of minerals, localities and other rockhounding information.
http://www.minmax.net/en/

RockHound Blog
A blog designed to help rockhound enthusiasts connect, swap information, and chat. Features many categories and archives.
http://www.rockhoundblog.com

Rock Picture of the Week
Shows a new rock, mineral, or fossil related picture each week. Contains a picture archive, rock hunting areas, a mineral field test, and links.
http://www.rockpow.com

The Rock Picks Project
Offers maps of rock collecting locations around the United States and Canada. Has viewer input capabilities, photos, videos, forums, and links.
http://www.rockpicks.net

How to Become a Rockhound
Step by step instructions and tips for the prospective and beginning rockhound.
http://www.ehow.com/how_2070407_become-rock-hound.html

Casey's Rockhound Headquarters
Several pages of pictures of Casey's rock collection.
http://www.geocities.com/Hollywood/4168/casey/index.html

Pyramidia
Online information repository for the mineral form known variously as Glendonite, Thinolite, Gennouishi (Hammerstone), Jarrowite, and Pyramidite. Features a blog, gallery, and resource page.
http://www.glendonite.com

Marco's Italian Minerals
Private collection, trade lists, research; and exchange experiences with other rockhounds. Only site that trades exclusively in Italian, or alpine minerals.
http://www.macminerals.com/

Rockhounds Information Page
Link list and information about the rockhounds mailing list.
http://www.infodyn.com/rockhounds/rockhounds.html

Dirty Rockhounds
Features a discussion forum, and lists gemstones and collecting sites by State. Also has instructions for the beginning collector and gold panner.
http://dirtyrockhounds.com/

Bobs Rock Shop
Ezine for mineral collectors, rockhounds and lapidary hobbyists. Includes forum board, bulletin board, details about Tucson events, and list of US clubs.
http://www.rockhounds.com/

Idaho Rockhounding Adventures
A Idaho and Oregon rock hound site dedicated to the collection of rocks and minerals. Featuring field trip reports and dig location.
http://www.1rockhound.com

Yurila's Oregon Thundereggs
A gallery of Yurila's thundereggs and directions to the collecting locations.
http://yurila.com

Blue Hollow Sapphire Mine
Located near Sapphire in Central Queensland, Australia. Learn about sapphires, how and where to go fossicking for them when you visit Central Queensland.
http://bluehollowmine.com.au/

Santa Rosa Mineral and Gem Society
Located in Windsor, California. Information on field trips, how to join, and the GEM-N-I newsletter.
http://www.gem-n-i.org/