I apologize for not introducing myself yesterday. My name is Bryon Palmer. I was in a rush to find out what kind of rock I had so my son could share it in his classroom today and skipped the part about introducing myself. I really don't have much of a formal science education, but my love for history and science has grown exponentially since college. I also love watching and participating in conversations on the internet since there is so much that can be learned from such a variety of people. Thank you for the warm welcome and wonderful information everyone gave me.