Onix

Onix is a Rock/Ground type Pokémon introduced in Generation 1. It is known as the Rock Snake Pokémon.

Pokédex descriptions

Red
Blue
As it grows, the stone portions of its body harden to become similar to a diamond, but colored black.
Yellow Burrows at high speed in search of food. The tunnels it leaves are used as homes by DIGLETTs.
Gold
HeartGold
It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way.
Silver
SoulSilver
It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body.
Crystal As it digs through the ground, it absorbs many hard objects. This is what makes its body so solid.
Ruby
Sapphire
ONIX has a magnet in its brain. It acts as a compass so that this POKéMON does not lose direction while it is tunneling. As it grows older, its body becomes increasingly rounder and smoother.
Emerald There is a magnet in its brain that prevents an ONIX from losing direction while tunneling. As it grows older, its body becomes steadily rounder and smoother.
FireRed It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour.
LeafGreen As it grows, the stone portions of its body harden to become similar to black-colored diamonds.
Diamond When it travels underground, it causes rumbling and tremors. It can move at 50 mph.
Pearl It squirms through the ground using its long and rugged body. It always eats while burrowing.
Platinum
Black
White
It burrows through the ground at a speed of 50 mph while feeding on large boulders.
Black 2
White 2
Opening its large mouth, it ingests massive amounts of soil and creates long tunnels.

Evolution chart

Onix
#095
Onix
Rock · Ground

(trade holding
Metal Coat)
Steelix
#208
Steelix
Steel · Ground

Name origin

onyx
a type of rock

Moves learned by Onix

Onix sprites

Normal
Black/White
Shiny
Black/White
Normal
HG/SS
Shiny
HG/SS
Onix normal sprite Onix shiny sprite Onix normal sprite Onix shiny sprite

See all Onix sprites