What is the moon Prometheus made up of?

Prometheus, one of Saturn's moons, is primarily composed of water ice with a significant amount of rocky material. Its surface is characterized by a mix of ice and dust, which contributes to its irregular shape and varied terrain. The moon also exhibits a porous structure, indicating that it may have formed from the accumulation of smaller particles. Prometheus interacts with Saturn's rings, influencing their structure through gravitational forces.