USS Sapphire (PYc-2) of the war, "Sapphire" was designated for inactivation. On 19 September 1945, the boat departed New London and proceeded to Charleston, South Carolina, where she was decommissioned on 29 October 1945. Struck from the Navy List on 13 November of the same year, she was transferred to the Maritime Commission for disposal through sale on 3 September 1946. USS Sapphire (PYc-2) The second USS "Sapphire" (PYc-2) was a patrol boat in the United States Navy. Originally a private yacht and later a navy training vessel, "Sapphire" was built in 1929, and named "Margo" by George Lawley & Son, Neponset, Massachusetts.
Sapphire sapphire was 250 tons (1.25 × 10 carats), mostly by the United States and Russia. The availability of cheap synthetic sapphire unlocked many industrial uses for this unique material. The first laser was made with a rod of synthetic ruby. Titanium-sapphire lasers are popular due to their relatively rare capacity to be tuned to various wavelengths in the red and near-infrared region of the electromagnetic spectrum. They can also be easily mode-locked. In these lasers a synthetically produced sapphire crystal with chromium or titanium impurities is irradiated with intense light from a special lamp, or another laser, to create stimulated