I've added this mod and its dependencies to our modded game but I can't figure out how to get started with thorium.

https://imgur.com/Rx4f2rI
This is the only recipe I can find. We're playing with angels+bobs and I don't think there is any actual thorium ore on the map? But no way to refine it from something like saphirite or something.

Is it supposed to be a new ore that generates on the map in an angels game?

if you added it to an existing game, then thorium probably doesn't have any generation settings set.

ah, thorium does indeed now show up on the map, but with AB you should be able to get it from sorting, sluicing and some of clowns ores.