This temperature is so low that the molten lava appears black in sunlight, rather than having the red glow common to most lavas.

The backdrop reveals splashes of red lava as it flows into a steel-grey sea.

They arrived at the smoking crater with glowing red lava on 27 June.

A new fissure opened in its side, and bright red lava welled out, like fresh blood.

Boiling red lava appeared, flowing in pursuit of the steam.

Now they came out in a large cavern lit by the orange glow of a flowing river of red hot lava.

A few yards down the slope an outcropping of red lava made a stair or little cliff in the hill.

He dropped down until his feet almost touched the red lava.

And the evening is the best time to go, and view the red lava above, when its flowing.

Up on the mountain above Ruth's house a river of red lava began to flow down the mountain.