His eyes were a slatey bluethe color of the sea on a cloudy day.

The poet's tomb was disappointing in its unlovely simplicity, its stern, slatey hue.

"What is it?" gasped Riggs, breathing hard after his climb, and testing the rocks before he climbed up to where I was perched between two pinnacles of slatey stone.

The rock composing the summit consists of a very coarse, dark, volcanic conglomerate: the lower parts appeared to be of a very slatey structure.