General Geologic Links:

Rocks from around the USA

Gemstone treasures.
Lizzadro Museum of Lapidary  Art

Earth Science Current Events.
Geology.com

The Journal of Avocational Paleontology.
Fossil News

Where do those pretty rocks at the shop come from?
The story of Morissonite

McRocks - Field trip reports from around the country.
McRocks

Your source for science you can use.
USGS - United States Geological Survey

Kreigh's Web Resources Collection for Rockhounds.
Kreigh's links for Rock Hounds

More helpfull information from Kreigh.
Home made rock equipment

Caves of the USA

The Webs mineralogy database. 
Mindat

Learn about 'em before they're gone.
Glossary of Glacier Terminology: USGS

New Ways to Study Ancient Life. 
Advances in Paleontology

Database of long and deep caves from all over the world. 
Cave Database of the world

A Guide to U.S. Caves Open to the Public.
U.S. Showcaves

Since the dawn of the World Wide Web.
Rock Hounds

Protecting the Public Lands for the Public.
American Lands Access Association

Jewelery Manufacturing Methods and Techniques.
Ganoksin Project - Gem And Jewelry resource

Sand Collecting
www.sandcollectors.org