AM_Levyne-Ca_4 Formula: Ca.79 K.11 Na.48 (Al3.128 Si5.872) O25.77 H36 Name: Levyne-Ca Unit cell: 13.386 13.386 22.591 90.0 90.0 120.0 , V=3505.64 Space group: R-3M (166)

Sacerdoti M , Neues Jahrbuch fur Mineralogie, Monatshefte , 1996 (1996) p.114-124, New refinements of the crystal structure of levyne using twinned crystals, Locality: Iki Island, Nagasaki Prefecture, Japan, Sample: 10