I know that leaf, fire, and water stones are sold in the stone emporium shop. But will other stones be sold there later in the game? --- FC is 3024-5580-8586 and named Miranda. Fire type safari w/ Growlithe, Fletchinder, and Pyroar.
Evolution stones can be obtained from Super Training.
First, you need to beat all three levels of Super Training. Then, you need to have a fully trained Pokemon. Once you do, more levels of Super Training will unlock. Beating these upgraded training levels will occasionally yield evolution stones, depending on which ones you do (beating Venusaur will give leaf stones, Charizard fire stones, etc.). --- I'm a soldier in the war against fanboys. My only weapon? Reason. Pokemon X FC - 0447 6354 6600