you can get more shiny stones underground like fire, leaf, water, moon and lightning stones, but some stones need specific places underground.
Dusk stones/shiny stones/ dawn stones/and oval stones are items that make certain Pokemon evolve. You can get A dusk stone in the galatic building in veilstone city. you evolve happiny by giveing it a oval stone and lvling it up murkrow evolves with dusk stone you evolve Roselia by using a shiny stone you can evolve togetic with a shiny stone
Dusk= Galactic Warehouse Shiny=Iron Island B3F Dawn=MT.Coronet(2nd)1FL.
there are 2
the nine stones are Dusk, Dawn, Shiny, Oval, Fire, Water, Thunder, moon, and leaf. if there are any more please edit
You can obtain them at the pokeatholon dome.
You can find shiny stones on route 228 and Iron island
In Iron Island or underground
Iron Island
Thunder stones, Water stones, Fire stones, Leaf stones, Shiny stones, Dusk stones, Oval stones, Moon stones, Sun stones.
shiny leaf thunder fire dusk dawn water and sun stones
Roselia into Roserade and Togetic into Togekiss
Iron Island.