I already have purchased the grit and pellets, and an Etsy shop owner gave me plenty of extra raw stone with my 1lb purchase earlier this month (Shoutout to Dan from Kinesavarocks). I have also watched a few tutorials on YouTube about how to tumble properly. I was just wondering if there was a "cheat sheet" for what rocks tumble well together. I know the Obsidian I purchased in Utah will not go well with the harder material like petrified wood, and agate I bought and was given, along with the river stones and quartz I have picked up recently. Google has been mildly helpful, but a sheet with the different hardnesses for stones would be ultra helpful.

TIA!