What glue can i use on stone the will hold but can be taken apart to make adjustments if need be?

Question

like gluing 2 small slabs together for grinding the edges round.

Answer 1

It might depend on how big the stones are, but I might try rubber (contact) cement. Also, isopropyl alcohol in 90%+ concentration will remove most glues , even super glues, for getting them apart. There's also debonding agent, sold at some craft stores, so really you can use any glue without worry of taking them apart later, imo.

Answer 2

Hot glue often works, and many woodworkers use double-sided tape.