AM_Levyne-Ca_6 Formula: Ca1.64 K.14 Na2 (Al5.989 Si12.011) O50.1 H72 Name: Levyne-Ca Unit cell: 13.372 13.372 22.64 90.0 90.0 120.0 , V=3505.90 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: Hvalfiordur, Iceland, Sample: 12