AM_Adamsite-(Y) Formula: Y.72 Dy.06 Er.05 Gd.04 Nd.03 Yb.02 Sm.02 Ho.02 Ce.01 Tb.01 Tm.01 Na C2 O12 H4.89 Name: Adamsite-(Y) Unit cell: 6.2592 13.0838 13.2271 91.13 103.554 90.188 , V=1052.81 Space group: P-1 (2)

Grice J D , Gault R A , Roberts A C , Cooper M A , The Canadian Mineralogist , 38 (2000) p.1457-1466, Adamsite-(Y), a new sodium-yttrium carbonate mineral species from, Note: O8 y-coordinate altered, Locality: Mont Saint-Hilaire, Quebec, Canada