Gem Missile is one of six spells taught by Gnome, the Mana Spirit of Earth, in Secret of Mana. It is an offensive spell that attacks the target with a barrage of mineral shards.
Popoi can cast the spell at a cost of 2 MP. It is also cast by the Mantis Ant in Potos Village, the Great Viper in the Cave of the White Dragon, Spider Legs in Kakkara Desert, the Metal Mantis in the Imperial Palace, and Steelpions in the Grand Palace.