Cunix #104.95 - FusionDex

Gen3] shiny Onix in Firered Victory Road w/ repel trick : r/ShinyPokemon

Onix - 42/112 - Uncommon Reverse Holo

Onix - EX FireRed & LeafGreen Pokémon card 42/112

Shiny Onix from Brock (This is an accidental shiny and looks like it's a 1/8192 chance like usual. I think you can shiny hunt the Pokemon of Gym leaders but I'm not

Onix - Pokemon Red, Blue and Yellow Guide - IGN

Pokemon The Last Fire Red 4.0 Find Crystal Onix

Stumbled upon the crystal Onix in a nuzlocke run : r/pokemon

Fire Red and Leaf Green Pokémon Gym Leaders in Kanto (Badges Help) - HubPages

Pokemon Fire Red Part 4 : 3 Steps - Instructables

Pokédex - #095 Onix