Recent Examples on the WebHowever, Birmingham’s iron ore had enough limy material already inside it that little or no additional limestone was needed, Lacefield said. Dennis Pillion | Dpillion@al.com, al, 1 Dec. 2021 Lacefield writes that in quieter geologic times, that mud mixed with limy shells to form limestone. Dennis Pillion | Dpillion@al.com, al, 17 Nov. 2021