Acenite

Found along river banks in Ilithi, this white metal was once disregarded as stone until an unwitting Elven forger accidentally put it in his forge and it melted. With an opaque and matte hue when cast, the metal tends toward the softer side and holds intricate detail, so it is most commonly used in jewelry or other adornments in place of ivory.

"Acen" is "white" in Ilithic.