白云岩 Traditional form: 白雲岩 Pinyin (reading): báiyúnyán Definitions: dolomite (geology) Characters: 白 - white; clear, pure, unblemished; bright 云 - cloud; to say, to speak 岩 - cliff; rocks; mountain Traditional characters: 白 - white; clear, pure, unblemished; bright 雲 - cloud; to say, to speak 岩 - cliff; rocks; mountain