His head clicked like brittle metal on the black basalt of the floor.

It was black basalt, completely out of place in this granite geology.

But now the black basalt of the isle was not fine enough.

Constructed of black basalt, it was covered with creeping plants.

Frazer worked almost exclusively with the local black basalt for about 12 years.

Okakura got up, and they walked back over the dense black basalt.

The use of black basalt for the central mihrab was a common practice during the sixteenth century.

Its foundation was made of black basalt, a great part of which is still preserved.

It was executed in black basalt or some stone of the sort, and very highly finished.

The majority of the structures are made from black basalt, a volcanic rock found locally.