Salt (MRBloch Archive) 
A collection of material relating to salt [NaCl] and its influence on civilization. Includes sections on physiology, geology, archeology, palaeoclimatology, palaeogeography, production, religion, economics, and etymiology of salt.
http://www.salt.org.il/The Rock Gallery
Geological display of images and information including crystals, minerals and gems.
http://www.geocities.com/EnchantedForest/Cottage/3292/
Eastern (USA) Minerals Resources
Gateway to information on minerals and mineral resources research in the eastern United States.
http://minerals.usgs.gov/east/
Minerals of the United States
Click on the map to view pictures of minerals found in the chosen state.
http://www.tigerminerals.com/
Perlite
Pictures, links, and a brief description of the properties and applications of this siliceous rock.
http://www.perlite.net/
GeMin Exhibition
GeMin exhibition and online copipes of the Oryktologia NEA news.
http://users.hol.gr/~minat/
Rakovan, John
Professor in the Department of Geology at Miami University, Oxford, OH. Includes information on Dr. Rakovan's research and teaching in mineralogy and geochemistry.
http://www.users.muohio.edu/rakovajf/
The Rock, Mineral, and Fossil Reference
Contains over 100 pictures of minerals, rocks and fossils, as well as information about classification, identification, the Science Olympiad Rocks and Minerals event and related topics.
http://dph1701.tripod.com/geology/
YupRocks
high-resolution pictures of rocks and minerals, taken from personal collections, as well as the Calvin College Geology Department, Michigan, USA.
http://www.yuprocks.com
Collecting Rocks
USGS information on collecting rocks.
http://pubs.usgs.gov/gip/collect1/collectgip.html
