Wow one the elusives. Nice one! I found a very small piece in the First Creek area. That was quickly trumped by a fist-sized calcite crystal softball my buddy pulled out of a pocket that day though. He keeps it in his glovebox in his vehicle now for special powers I guess.
I'll be seeing him at Bob Jackson's open house this weekend. I'm going to ask if he still carries it arround like a newborn child.