Item from Percy Jackson by Rick Riordan
The metal that kills monsters — mined from Mount Olympus, forged by Hephaestus, and the only material that matters in a demigod's weapon rack.
Celestial bronze is the foundational material of Greek demigod warfare — a warm golden-bronze metal mined from Mount Olympus and forged with divine fire by Hephaestus and his children. It kills monsters on contact, dissolving them back to Tartarus in a shower of golden dust. It can wound gods and titans. And it passes harmlessly through mortals — the perfect weapon for a world where your enemies are mythological and your classmates are human. Most camp weapons are Celestial bronze: swords, spears, shields, arrowheads. Imperial gold is the Roman equivalent, slightly different in composition but equally lethal, used exclusively at Camp Jupiter.
A warm golden-bronze metal that glows faintly in darkness. It's lighter than steel, harder than iron, and resonates with divine energy. Weapons made from it feel alive in a demigod's hand.
Also known as: Celestial bronze, CB