The last scoria were seen on the morning of August 20.

"Three fools," he said in a voice like cold scoria.

I wished you well away from the Scoria system.

Its scoria was used on the district's early roads.

It is named after a nearby scoria cone with crater.

The marrow of his bones burned and ran like scoria.

That also has some young scoria cones and lava flows.

However, the large scoria deposits in the surrounding area are still being quarried.

It is a large scoria volcano with two craters, which last erupted about one million years ago.

A walk up to the scoria summit passes lava caves.

Flowing through large amounts of volcanic scoria it is very well filtered.

Mount Elephant is an example of a scoria cone.

Lava lakes often form in the centre of scoria cones.

The scoria cone is approximately 400m in diameter and of circular shape.

Someday the plants will turn this cone of scoria and rubble into soil, but not yet.

The area is made up of scoria cone and silicic dome fields.

The scoria cone was built by fire-fountaining from two craters.

Oval and about 600m long, it has a small restored scoria island remaining in the centre.

The island is a double caldera with a scoria hill rising in the middle.

"It takes nearly ten weeks to get from the Scoria system to the Ophiuchian."

He was left with this dream, like scoria upon the blackened side of a long exhausted volcano.

The car park is inferred as located on the remains of the weathered scoria cone.

The volcanic scoria cone is of the greatest geological and archaeological interest however.

The road was built out of a cement of compressed red scoria dust.

In the southwest corner there is a playing field built on a free-draining scoria base.