USS Corundum (IX-164), a Trefoil-class concrete barge designated an unclassified miscellaneous vessel, was the only ship of the United States Navy to be named for corundum. The ship (a Type B7-D1 barge) was laid down on 19 October 1943 under a Maritime Commission contract (MC Hull 1332) by Barrett & Hilp, Belair Shipyard, in South San Francisco. She was launched on 31 December 1943, sponsored by Mrs. William O.Neill, and named Limestone (IX-158) on 7 February 1944, but renamed and redesignated Corundum (IX-164) on 23 May 1944, prior to acquisition by the United States Navy.