Cinnabar akin to that of HgO: each Hg center has two short Hg−S bonds (each 2.36 Å), and four longer contacts (with 3.10, 3.10, 3.30, and 3.30 Å separations). In addition, HgS is found in a black, non-cinnabar polymorph (metacinnabar) that has the zincblende structure. Cinnabar generally occurs as a vein-filling mineral associated with recent volcanic activity and alkaline hot springs. Cinnabar is deposited by epithermal ascending aqueous solutions (those near surface and not too hot) far removed from their igneous source. It is associated with native mercury, stibnite, realgar, pyrite, marcasite, opal, quartz, chalcedony, dolomite, calcite and barite. Cinnabar is
USS Cinnabar (IX-163) was en route to Okinawa during the typhoon at sea 30 September to 2 October. On 9 October 1945 during Typhoon Louise she went aground at Baten Ko, Buckner Bay, Okinawa. She was stricken from the Naval Vessel Register on 3 January 1946, returned to her owner at Okinawa, and subsequently sold. USS Cinnabar (IX-163) USS "Cinnabar" (IX-163), a designated an unclassified miscellaneous vessel, was the only ship of the United States Navy to be named for cinnabar. Her keel was laid down in 1944. She was acquired on a loan-charter basis from the War Shipping Administration and placed in