Granite Elementals are tall, yet thin, crude, rock-type creatures with asymmetric bodies. The elementals do not have any faces and instead they have a symbol that resembles the sun painted on what should be the creature’s face, and a different symbol on the right side of their chests. The elementals are bipedal and have long arms, which they use instead of a weapon. Although their arms have five fingers like humans, they do not have feet at all.
On June 22, 2023, a large amount of Granite Elementals spawned in a hidden room in the 27th Floor's Labyrinth, after Ducker triggered a treasure box trap that sealed off the area, prevented the use of crystals and continuously drew monsters to the area. With the help of Dark Dwarf Miners, who were also summoned to the room by the trap, the elementals killed off 4 out of 6 of the Moonlit Black Cats members: Ducker, Tetsuo, Sasamaru and Sachi, though the last surviving member in the room, Kirito, managed to defeat a large number of them and disable the trap without being killed.