Minior resembles a levitating sentient meteorite with a light brown-colored body. It has two large black-colored circular eyes and five spikes protruding from its body. It also has triangular markings covering its body as well.
In its actual form, Minior is smaller and has a perfectly spherical body. It eyes now are white and spiral-shaped. The color of its body is one of seven colors: red (pink), orange, yellow, green, blue, indigo, and violet.
Minior’s physical lifespan is very limited. Once the core form comes out of the shell, it only has a short life to live until they die on a clear night. It's core becomes part of the universe if not returned to it's PokéBall quickly. This leaves the particles on the ozone layer of the Earth, in which Minior left behind upon its death to be absorbed by its natural predator, the Legendary PokémonRayquaza itself.
Minior is thought to have originated from outer space, being created from absorbing large quantities of space debris. After absorbing too much debris, Minior crash lands to Earth.
Minior's rocky armor protects its vulnerable core inside. After revealing its core-shaped form, Minior will be able to attack more quickly due to its light weight.
The different colors of the core are based on what debris the Minior absorbs.
Meteor Form: Originally making its home in the ozone layer, it hurtles to the ground when the shell enclosing its body grows too heavy. Core Forms: It eats dust in the atmosphere.The composition of the dust determines the color of its core.
Meteor Form: Strong impacts can knock it out of its shell. This Pokémon was born from mutated nanoparticles. Core Forms: If its core stays exposed, it will soon die off. It’s possible that it may survive if it’s put into a Poké Ball quickly enough.
Meteor Form: It lives in the ozone layer, where it becomes food for stronger Pokémon. When it tries to run away, it falls to the ground. Core Forms: Places where Minior fall from the night sky are few and far between, with Alola being one of the precious few.
Meteor Form: Although its outer shell is uncommonly durable, the shock of falling to the ground smashes the shell to smithereens. Core Forms: This is its form when its shell has fallen off. The color of its core depends on the materials that made up the food it ate.