AM_Pectolite_1 Formula: Ca2 Na H Si3 O9 Name: Pectolite Unit cell: 7.988 7.04 7.025 90.52 95.18 102.47 , V=383.99 Space group: P-1 (2)

Prewitt C T , Zeitschrift fur Kristallographie , 125 (1967) p.298-316, Refinement of the structure of pectolite, Ca2NaHSi3O9, Locality: Erie railroad cut, Bergen Hill, New Jersey, USA