300 gram broken half stone with Ninger/ASU number 100.17. This was received in a trade from ASU, a deal brokered with Carleton Moore (who is a great gentleman). After we arrived at a gram size for the trade, Dr. Moore went into the collection, grabbed a 500 gram complete stone and proceeded break it in half with a vise! I have never witnessed anything like this, and hope not to ever again :)