Mineralogy database - a superb site listing over 4000 mineral species with detailed information on crystallography, chemical formulae, identification and much more. Ever wondered what schollhornite is? Also check out links on the site to Mineral Dealers (in particular John Betts - Fine Minerals) for some superb mineral images.

The Gateway to Astronaut Photography of Earth - hosts the best and most complete online collection of astronaut photographs of the Earth. The "Earth From Space" collection allows you to search outstanding photographs by theme or geographic area.

Rockware - Earth Science Software  - extensive range of earth science software covering lots of different disciplines. Plenty of trial downloads and an easy to navigate site.

Reflections - a comprehensive web portal covering all aspects of exploration and mining mainly in Australia. Features comprehensive web listings of exploration companies, consultants and other data sources. Also includes useful links sections.

Yahoo! - Earth Sciences - extensive web site listings of earth science categories, including geology and geophysics. A good place to look for interesting sites across a wide range of disciplines e.g. 'earth scientists' will provide you with a fascinating look at sites devoted to pioneer geoscientists from Hutton onwards.

Geology.net - an excellent web portal that includes listings for online databases, shareware, and other links. Economic Geology category includes many useful and diverse links. One of the most comprehensive portals we have come across - highly recommended.

A selected site devoted to particular specializations in geology will be featured in this section. This months site is Structural Geology on the Web

This impressive site features links to assorted structural geology and tectonics resources available on the world-wide web. The on-line version of the well-known text books - Atlas of Igneous and Metamorphic Rocks, Minerals, and Textures (under structural images) is well worth a look.