GREEN ROCKS GAME - guess the weight, feed your tumbler

OK time for a guessing game. I picked up a bunch of slabbettes and cabochon preforms from an old estate collection. The guy apparently really liked green materials because I sorted through all the containers and created the pile you see in the picture below. All of the material could be complete crap or some of it could be jade - or all of it serpentine. I have no idea really. I did see a small amount of Mariposite in the mix - other than that it's just a whole lot of unidentified stuff. The majority of the stuff is cabochon sized slabbettes - much is precut preforms as shown in the picture. I will say that a significant amount of the pile did was not able to be scratched with a steel blade.

All of the material fit snuggly in a MFRB. It's possible I put it in containers or bags inside the box, it's possible I didn't - this will be part of the variable of guessing. I will send said MFRB to the winner upon conclusion of the game.

Rules (strictly enforced):

1. Guess the total number of OUNCES of rocks (weighed wet as shown).
2. No partial ounces - the total is rounded up to the next whole ounce.
3. Closest guess WITHOUT GOING OVER wins.
4. Everyone gets five guesses - take them all at once or spread them out makes no difference really because of rule II V.
5. No further clues will be given.
6. Game starts now and ends promptly at 9pm on Monday 2/13.
7. In the event that the EXACT whole ounce answer is guessed I will stop the game and award the prize.
8. Edit to add: in the event of a tie the credit will go to the first person who guessed that number

Good luck and have fun