AM_Petarasite
Formula:
Na4.8 Ca.2 Zr2 Si6 O20.37 Cl.75 H4.37
Name:
Petarasite
Unit cell:
10.7956 14.4928 6.6229 90.0 113.214 90.0 , V=952.32
Space group:
P121/M1 (11)
Ghose S , Wan C , Chao G Y , The Canadian Mineralogist , 18 (1980) p.503-509, Petarasite, Na5Zr2Si6O18(Cl,OH).2H2O, a zeolite-type zirconosilicate