I'm a grad student in Minneapolis, MN, USA working on a geology presentation. I want to show students the uses of minerals in our lives. To do that, I'm using Creative Commons licensed photos from Flickr to illustrate just what the rocks under our feet (or the feet of people all over the world) can be turned into.

If you are wondering why I faved your photo (how could it be related to rocks?) drop me a note and I'll explain all.

Cheers!