Rockhounding Arkansas - An authoritative and comprehensive guide to Arkansas geology, mineral, and rock collecting sites. Written by the well known geologist Mike Howard. 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. 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. Nikolay Gospodinov Collection - Bilingual Russian and English language site with photos and information on the mineral and fossil collection of Nikolay Gospodinov. Virgin Valley Opals - Includes collection sites, geology and history of the area. RockHound Blog - A blog designed to help rockhound enthusiasts connect, swap information, and chat. Features many categories and archives. 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. 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. Geology Adventures - Founded in 1983. Book rockhounding field trips for clubs and organizations.