Lapis lazuli

Lapis lazuli was a bright blue material.

Ta-Nin wore a necklace of lapis lazuli. The tables in the feast hall of the palace of Uruk were inlaid with lapis lazuli. (PROSE: Timewyrm: Genesys)

The walls of Babylon were built of bricks the colour of lapis lazuli. (AUDIO: Farewell, Great Macedon)