AM_Gobbinsite
Formula: Na1.3 K1.125 (Al3 Si5) O21.325 Ca.3 H12
Name: Gobbinsite
Unit cell: 10.108 9.766 10.171 90.0 90.0 90.0 , V=1004.03
Space group: PMN21 (31)

McCusker L B , Baerlocher C , Zeitschrift fur Kristallographie , 171 (1985) p.281-289, Rietveld refinement of the crystal structure of the new zeolite mineral gobbinsite, Locality: County Antrim, Northern Ireland