The answer is Pluto. Pluto isn't a planet anymore so there is no planet made up of rock and ice.
pluto
Saturn is the planet with rings made of ice and rock.
the moon
ice and rock
Pluto, but some consider that Pluto is not a planet anymore.
Pluto, which is no longer considered a planet, is made of rock and ice and is smaller than Earth's moon.
Pluto is a dwarf planet made ice and rock.
They are made of bits of ice and rock.
Pluto
Dust, rock fragments and ice.
none but Saturn is known for its rings to be made of ice and rock
Eris is made mostly of ice.
Pluto is a solid planet. Pluto is made mostly of ice, although the core is most likely rock with metal in it.