The main rocks and minerals to be found in the valley are green slate and granite.

This appears to have been predominantly for the green slate available in the valley.

The church is built in sandstone with a roof of green slate.

A peaked roof covered with red and green slate completed the picture.

The counters in his kitchen, for instance, look like green slate from a distance but are really laminate.

Twelve thousand five hundred square feet of green slate has been brought in from Vermont and is being laid on the building's main floor.

The roof is made of grey green slate from Norway.

The roof is mainly of green slate, with some Welsh grey slate.

The roofs are in green slate with lead flashings.

The kennels are built in red brick with a patterned roof of blue and green slates.