Geology
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- Rockhounding Arkansas
- An authoritative and comprehensive guide to Arkansas geology, mineral, and rock collecting sites. Written by the well known geologist Mike Howard.
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- Santa Rosa Mineral and Gem Society
- Information on field trips, how to join, and newsletter. California.
- 243
- 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.
- 244
- Black Shale Net
- Geoscience platform for the exchange of information concerning organic-rich strata such as black shales, oil shales and hot shales.
- 245
- British Geological Survey Education Pages
- Information on geological topics aimed at schools and the general public.
- 246
- Gateway to Jade Information
- Information on jade. Covers the origin of jade, the history of jade, and the qualities associated with jade.
- 247
- Hudson Institute of Mineralogy
- Dedicated to the discovery, study and preservation of rare mineral species, and to increasing public awareness and appreciation of the mineral kingdom through outreach and education.
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- Northwest Treasures
- Specialist in personally collected and crafted thundereggs, geology specimen kits, unique gifts, display pieces, and educational materials for the young scientist.
- 249
- Rocks For Kids
- About Rocks and Minerals written for kids with Links to kid-friendly rock information on the Web.
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- American Federation of Mineralogical Societies
- Composed of seven similar regional organizations of gem, mineral, and lapidary societies.
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- California Federation of Mineralogical Societies Members
- Contact details for the Societies' Rock Clubs.
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- Clay Minerals Society
- Concerned with the study of clays. Member information, publications, meetings and source materials for sale.
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- Eastern Federation of Mineralogical & Lapidary Societies
- Official site - for information on upcoming events and other announcements.
- 255
- Georgia Mineral Society, Inc.
- Georgia's Oldest Gem and Mineral Society - Founded in 1935. A volunteer organization dedicated to educating the youth of the state and the members of this Society in the field of Earth Sciences.
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- International Gem Society
- Dedicated to bringing quality information and educational services to everyone interested in gemstones.
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- Lapidary World
- Association of clubs for lapidary enthusiasts interested in collecting gemstones, minerals, fossils, faceting, jewelry making, metal detecting, buying, selling and trading gemstones and minerals worldwide.
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- Mineralogical Society
- Society for the advancement of mineralogy and its application to crystallography, geochemistry, petrology, environmental science and economic geology through support of meetings and publication of books, journals and monographs.