Large Glintstone Scrap is a Consumable Item in Elden Ring. Most Consumables grant various effects such as restorative properties for recovering HP, removing certain negative status effects or applying temporary buffs and debuffs, while others can be thrown at enemies to deal damage.
Large piece of glintstone tinged with unstable magic. Found in crystal tunnels.
Break gem, using FP to produce a magic bolt.
Poor quality and thereby easily broken, a sorcerer wouldn't give it a second look.