Web Mineral
Complete, up-to-date, mineral database containing 4,442 mineral species descriptions and comprehensive picture library of images. These data are linked to mineral tables by crystallography, chemical composition, physical and optical properties, Dana classification, Strunz classification, mineral name origins, mineral locality information, and alphabetical listing of all known valid mineral species. There are extensive links to other sources of mineral data available on the WWW.
http://webmineral.com/

Aquamania.net: World Mineral Water
Comprehensive collection of information about mineral water. Describes the differences between mineral and spring water, different types of mineral water, laws governing mineral water quality, and includes a collection of 986 labels from water bottles.
http://www.aquamania.net/other/eentree.htm

Mineral 1.0
Test your knowledge of specific minerals
http://www.spaceman.ca/mineral/

Sequoia Gem and Mineral Society
DriftMine is dedicated to facilitating the flow of useful information to and among members of the San Francisco Bay Area mineral collecting, lapidary, and earth sciences communities.
http://sgms.driftmine.com

AME Mineral Economics
AME Mineral Economics provides systems to manage expert networks.
http://www.ame.com.au

CF Mineral Research Ltd.
A heavy mineral processing lab specializing in diamond exploration.
http://www.cfminerals.com

Fine Mineral Company
Offering mineral specimens from worldwide locations.
http://www.thefinemineralcompany.com/

Amethyst Galleries' Mineral Gallery
Amethyst Galleries' Mineral Gallery is a constantly growing database of mineral descriptions, images, and specimens. The descriptions include searchable mineralogical data, plus other information of interest to students and rock hounds!
http://www.galleries.com/

Mineral Location Database CD-ROM
The Social Media blog is your single destination for updates on the AIM Buddy blog, the AIM Pages blog, the AOL Community Info blog, the Expressions Factory, the Marvelous Mob and the Social Media Mess blog.
http://members.aol.com/_ht_a/gaim/forsale.htm

Trinity Mineral Company
mineral specimens of highest quality and value for sale on the internet. Always updated! Home of the first Mineral Specimen Auction on the Internet.
http://www.trinityminerals.com/