Go to Ecruteak city. From there, start on your way to Olivine. If you stick to the upper route, you will see a girl. She is Lass Dana. Take her phone number, and she will give you a Thunder Stone after some time.
Be patient!
You can get Fire Stones from Schoolboy Alan who is near where the Sudowoodo used to be. Take his phone number.
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In Pokémon Liquid Crystal, the Sun Stone can be found in the Ruins of Alph. To obtain it, you need to solve the puzzle in the Ruins of Alph by pushing the correct boulders into the proper slots. Once you solve the puzzle, a secret chamber will open up, and you can find the Sun Stone inside. It is a rare item used to evolve certain Pokémon, such as Gloom and Sunkern, when exposed to it.
Pokemon crystal? Well...in Pokemon Diamond it's a stone dice that powers up rock type moves.
the code do be for gold shiny thunder stone cheat am 9001
the Pokemon are pikachu and evee to jolteon and that is all
The sun stone is an item similar to the thunder stone, water stone, fire stone and leaf stone it evolves two pokemon: Gloom and Sunkern.