changing color of flagstone
Please don't laugh too much... we bought a pallet of oklahoma wister flagstone to lay a patio (on top of a new concrete slab) close to but not adjoining the flagstone coping of our new swimming pool.
The coping of our pool is also Oklahoma wister (from the same stone yard,) but is is a lot darker in tone. The new pallet has some decently colored pieces on top, but the majority of the stone under the top is really much much lighter than what we have.
Have you ever heard of anyone trying to color or stain stone to make it darker? Maybe is can only be done with certain kinds of porous rock? maybe the color would leach back out?
I am desparate for help -- so any ideas would be greatly appreciated.