Well, mate. There's no Lava Stone. I wasn't sure, so I checked. There isn't one. But here's the locations for a Fire Stone or a Sun Stone.
Fire Stone --- There's one in the Fiery Pass. You need Strength to get to it.
Sun Stone --- You can get one really easy at the Space Center in Mossdeep City. Just talk to the old guy on the first floor, and he'll give you one.
Pokemon requiring a stone to evolve:Eevee - Thunder stone, Jolteon (you can't find this Pokemon in Ruby) Eevee- fire stone, Flareon (you can't find this Pokemon in Ruby)Eevee- water stone, Vaporeon (you can't find this Pokemon in Ruby)Sunkern- sun stone, Sunflora (you can't find this Pokemon in Ruby)Jigglypuff- moon stone, WigglytuffSkitty - moon stone, DelcattyNidorino- moon stone, Nidoking (you can't find this Pokemon in Ruby)Nidorina- moon stone, Nidoqueen (you can't find this Pokemon in Ruby)Growlithe- fire stone, Arcanine (you can't find this Pokemon in Ruby)Gloom- sun stone, BellosumGloom- leaf stone, VileplumeStaryu- water stone, StarmiePikachu- thunder stone, RaichuLombre- water stone, LudicoloNuzleaf- leaf stone, ShiftryVulpix- fire stone, NinetalesHappiny- oval stone Chansey
there is no shiny stone in Pokemon ruby it's only in sinnoh
Not in Ruby
Skitty evolves into Delcatty through the use of a Moon Stone in Pokemon Ruby and Sapphire.
there isn't an item called earth stone in ruby.......
In the game Pokemon ruby destiny
its zangooze..
PIKACHU
skitty
Gloom
Nope.
A sun stone evolves with a gloom and maybe even a sol rock too in Pokemon ruby.