 We're back here on The Bob Show. I'm Bob Recker, your host. We're talking to Jim Lamerson today. And before we took our first break, I said I was going to ask him a question. If you want to give Jim a call and ask him a different question, you're more than welcome to do that. It's area code 928-541-1016. And you can ask Jim any question you'd like. But I ask, we were talking just before the break about what makes a precious stone precious. And you during the break were saying there's five basic kinds of stones.