Check out http://geology.com/ for information on a variety of Earth Science topics we have been discussing in class. They have the latest geology news, visuals, maps, videos etc.
The glacially deposited sands around Lake Winnibigoshish, Minnesota, contain abundant sediments from the igneous and metamorphic minerals of the Lake Superior basin. A sample includes pink garnets, green epidote, iron-rich red agates, black magnetite, and hematite. Image Copyright © 2008 Dr. Gary Greenberg, All Rights Reserved.