"What does the prophecy have to say about the liquid rock?"

There was a tremendous explosion as the liquid rock struck water and air together.

The Land grew hot, dissolving into a deep ocean of liquid rock.

Underneath the crust there are pools of hot, liquid rock.

When too much hot, liquid rock (called magma) pours into one place below the earth, the pressure has to be released.

A tremendous spray of liquid rock was hurled into space.

There may also be signs that liquid rock flowed around the crater, from impact melted materials.

Sometimes magma (very hot, liquid rock deep in the earth) having diamonds will come near the top of a volcano.

The liquid rock was about to overflow its channel.