There was a fireplace on the back wall, faced in gray blue slate.

The village's All Saints church is built of the dark grey local slate.

"There's a dark gray slate that splits into sheets pretty easily."

The roof was gray slate, and all the windows were wide, the shutters open.

Its pillars and walls were pure white, the roofs of grey slate.

The roof is made of grey green slate from Norway.

Its dead eyes were flat and dull as gray slate.

He paused, cleared his throat, and looked into the dark gray slate of her eyes.

Q. I have a 30-foot-long flagstone walk in front of my house with dark blue, gray and red slates.

His eyes were an extraordinary colour, a grey so dark it was almost slate.