What are the items associated with hades?

Hades, the Greek god of the underworld, is commonly associated with several items. Notable among them are the Helm of Darkness, which grants invisibility, and the bident, a two-pronged staff symbolizing his authority over the dead. Additionally, the river Styx, which souls must cross to enter the underworld, is often linked to him. Hades is also associated with precious metals and gems found underground, reflecting his dominion over the earth's hidden treasures.