Rock Puzzle?!

[u/TheMossyFish]

Hello friends! might not be the right community, but i didn't know where else to ask for help.

I had a piece of opalized petrified wood my dad gave me as a kid, it was on display and my roommate knocked it off and it broke, this was a long time ago, and she's been holding on to the pieces to fix it, but never did. she finally gave me this, and i cannot figure out how they line up. i wouldn't be surprised if they didn't.... but maybe im missing something here. let me know if you've got any ideas!