Piedras importantes que necesitaran a lo largo del juego, sacado de la guia para lectura rapida en caso de que se nos olvide al principio:
Where do I find a Dusk stone?
(evolve Duoblade, Lampent, Murkrow, Misdreavus)
- Complete the
Super Training Secret Mode with the Aegislash Balloon. Getting a Dusk Stone is nowhere near guaranteed, but fast times gives higher chances of getting a Dusk Stone as a reward. Super Secret Training requires a fully EV’d mon to unlock.
http://www.serebii.net/xy/supertraining.shtml
- Talk to the Team Flare member in Laverre. Must be post-game.
...Shiny stone?
(evolve Floette, Togetic, Roselia, Minccino)
Route 12, ride the Skiddoo. Hop over the series of 3 ledges to the east, it will be right there. Also available via Secret Super Training, mission “An Opening of Lightning-Quick Attacks!”
Sun stone?
(evolve Helioptile, Petilil, Cottonee, Sunkern, Gloom -> Bellossom)
- Absolute earliest: The shadows in Glittering Cave have a small chance to spawn Solrock, which may have Sun Stones on them. Catch them or use Thief/Covet. Solrock can also be found on Route 8, in shaking areas.
- Earliest that doesn’t involve the RNG fucking you over: Give the Intriguing Stone Tierno gives you in Shalour City to the Hiker in the southeast part of town who is “looking for something.”
- Next: Route 13. Bring a Ghost-type so you can run from all the Dugtrio and Trapinch.
- Also available via Secret Super Training, mission “Drag Down Hydreigon.”
Other evolution stones?
Many others are also available through Secret Super Training. Completing these minigames faster increases the likelihood of getting a stone. Stones are not guaranteed prizes, it may require multiple tries.
http://www.serebii.net/xy/supertraining.shtml
Additional, non-super training locations:
- Dawn Stone: Surf on Route 3
- Fire Stone/Water Stone/Leaf Stone: Sold at the Stone Emporium in Lumiose, on Vernal Ave.
- Leaf Stone: Route 8
- Fire Stone: Route 9
- Moon Stone: Steal from wild Lunatone. Lunatone spawns in the same places as Solrock, check the previous question for more info.