| Navy | The Royal Navy |
| Type | Minesweeper |
| Class | Auk |
| Pennant | J 339 |
| Built by | Gulf Shipbuilding Corp. (Chickasaw, Alabama, U.S.A.) |
| Ordered | 7 Apr 1941 |
| Laid down | 1 Jan 1942 |
| Launched | 4 Oct 1942 |
| Commissioned | 7 Jun 1943 |
| End service | Jan 1947 |
| History | Returned to the United States Navy in January 1947. |
| Former name | USS Usage (AM 130) |
Commands listed for HMS Tourmaline (J 339)
Please note that we're still working on this section.
| Commander | From | To | ||
| 1 | A/Lt.Cdr. (retired) George Collas Hocart, DSC, RNR | May 1943 | ca.late 43 | |
| 2 | Lt.Cdr. Charles Timothy Shepherd, DSC, RD, RNR | 1 Jan 1945 | 10 Apr 1945 | |
| 3 | T/A/Lt.Cdr. Henry Nugent Somerville, RNVR | 10 Apr 1945 | late 1946 | |
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