Alolan Onix by BigBadSkullBoss on DeviantArt

Onix Pokédex: stats, moves, evolution & locations

Pokémon Luminescent Platinum Day 7 [Blind Playthrough]

Curse Onix is the best strat vs Roark in Renegade Platinum and you can not convince me otherwise. : r/nuzlocke

Pokemon Platinum :: Full Walkthrough

Pokémon Adventures: Diamond and Pearl/Platinum, Vol. 8, Book by Hidenori Kusaka, Satoshi Yamamoto, Official Publisher Page

Pokemon Platinum Part #31 - Anal Cave City

Onix Pokemon Cards

Calaméo - Pokemon - Platinum Detonado

2008 Nintendo DS Pokemon Pocket Monsters Platinum Japanese Version (JPN) Sealed Video Game – VGA NM+/MT 90 on Goldin Auctions

Oreburgh Mine - Bulbapedia, the community-driven Pokémon encyclopedia