Iolite Elemental is a kind of elemental.

First seen in Day 189.

Rou encounters 23 of them the first time he was in the Labyrinth City Aquarium's 【Age of the Gods Dungeon】 made by the 【Demigod of Spring Water】: [Forlia] dungeon.

Looks like a round, blue core wrapped in a stream of water.

The dungeon strengthened the monsters by 2 levels, making them very tough.