Ice V

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Ice V (pronounced "ice five") is a monoclinic crystalline phase of water, formed by cooling water to 253 K at 500 MPa. It has a complicated structure, including 4-membered, 5-membered, 6-membered, and 8-membered rings and a total of 28 molecules in the unit cell.[1][2] Ganymede's interior probably includes a liquid water ocean with tens to hundreds of kilometers of Ice V at its base.[3]


  1. ^ Chaplin, Martin (10 April 2012). "Ice-five (Ice V)". Retrieved 19 May 2014.
  2. ^ Kamb, B.; Prakash, A.; Knobler, C. (1967). "Structure of ice. V". Acta Crystallographica. 22 (5): 706. doi:10.1107/S0365110X67001409.
  3. ^ Showman, A. (1997). "Coupled Orbital and Thermal Evolution of Ganymede" (PDF). Icarus. 129 (2): 367. doi:10.1006/icar.1997.5778.