Interesting Links:

The Corunduminium, http://www.corunduminium.com/>
by William Heirerman, a Math teacher at Wharton County Junior College in Wharton TX.

American Mineralogist, http://www.minsocam.org/msa/ammin/toc/
has their articles from 1916 to 1999 available for free on this site. (Full text articles published in 2000-2008 are restricted to Subscribers and Members but you can view the abstracts.)

Weird Geology Room, http://unmuseum.mus.pa.us/weridgeo.htm
by Lee Krystek explores some geological features. Quicksand, Hoodoos of Bryce Canyon, Tsunamis, Devil’s Tower, Yellowstone Super Volcano, Ringing Rocks (listen to the sounds), Geysers (watch the movies), and Crystals are revealed.