Both. Put a little glue on the edge you want to glue. Then a little rolled string of epoxy, then more super glue, then stick it to the rock. The glue provides the stick and the epoxy pales it so the surfaces conform to each other.
Both. Put a little glue on the edge you want to glue. Then a little rolled string of epoxy, then more super glue, then stick it to the rock. The glue provides the stick and the epoxy pales it so the surfaces conform to each other.