Apologize for the double post, but I felt like this deserved a separate post, I'll have to ask someone to mark the compounds that say you can create bluestone via granite + granite with superior alchemy and basalt + basalt with junior alchemy as incorrect, because I've no clue how that works, sry.
Compounded two stacks of of granite + 6 pieces and a stack of basalt + 10 pieces and these are the results.

Link to the compounds