Lisa at anotherlisa had a really neat link on her site - The Rock Identification Key . It's a site to help novice rock collectors figure out what kinds of rocks they have found. It's really interesting to me because I am always looking at rocks, picking them up, and dragging them home. My friend's husband is a geologist and I often bring him my 'little treasures' to examine. I once found a prehistoric tool near our farm. I keep looking for more but I've never come across anymore.
Sometimes I take it out and sit and try to imagine who made that tool - What was their life like? How did it get near my farm? Questions that will never be answered but are interesting to think about. Sometimes my kids and I sit around and make up stories about that rock and the people who used it.
Thanks Lisa for posting that link!