Thanks guys, this is some of that rock that's been on my bucket list. I had spoken to a fellow knapper at an event earlier this month and mentioned before leaving that if he had any extra HC he could send it my way. He said sure and we traded business cards. So when I got home from work last night I had no idea who had sent me rock until I read the note inside. I'd call him a stand up guy to send a box of HC with a note explaining where to send the check (and at a great price!) I might just send him double payment and ask him to send another box.
Eddie he did mention that this was already treated, but I have no proof one way or the other.