Onix's final evolution is Steelix, the Steel/Ground-type Pokemon. It can evolve only by trading Onix to another player, while holding a Metal Coat, or Steelix can be found in certain areas in the right game version.
Onix is in Pewter City where Brock is.
The is no pre-evolution of onixOnix is a stage 1 pokemon
Onix is #95 in the national pokedex, and it is a Rock-Ground type Pokemon.
Steelix.
The onix you found was a very VERY rare one. It is called a shiny Pokemon and the star represents that it is a shiny Pokemon.
No, Steelix is the evolved and final form of Onix
Onix does not have a pre-evolution form currently as of Pokemon Omega Ruby and Alpha Sapphire and has not been announced for the Pokemon Sun and Moon games.
steelex does not evolve for it is a final evolve form of onix
In Pokemon Yellow Onix does not evolve, it is a one stage Pokemon.
If you mean,, what onix evolves into,, it's steelix,, but the is no Pokemon that evolves into onix
Unfortunately, you can't get an Onix in Pokemon Emerald. To have your own Onix, you need to trade it from FireRed or LeafGreen. Hope I helped :)
Onix is in Pewter City where Brock is.
Onix is a Rock/Ground type Pokemon.
You can only get an "onix" in Pokemon sapphire if you have a Pokemon version that has an onix then use a linking cable with other GBA to trade it and then you'll have an onix but "onix's" data can't be stored in your pokedex.NOTE:You can only trade with a Pokemon version that have the same region as your Sapphire has;HOENN REGION.
Please see the related link for info on the pokemon, Onix
If you mean Onix, nothing evolves into onix
There is no Pokémon that evolves into Onix.