Fontanite Hughes K-A, Burns P C American Mineralogist 88 (2003) 962-966 A new uranyl carbonate sheet in the crystal structure of fontanite, Ca[(UO2)3(CO3)2O2](H2O)6 _database_code_amcsd 0003131 6.968 17.276 15.377 90 90.064 90 P2_1/n atom x y z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) U(1) .5267 .2371 .8372 .025 .011 .044 .020 -.002 -.003 .002 U(2) .0267 .2843 .7301 .024 .011 .036 .024 -.001 -.002 .002 U(3) .0257 .1952 .9483 .024 .010 .043 .019 -.001 -.003 .002 Ca(1) .9410 .5174 .7848 .043 .037 .052 .039 -.001 .000 .003 C(1) .5320 .3175 .6656 .001 C(2) .5270 .1688 .0150 .006 O(1) .0230 .2880 .9900 .049 O(2) .0400 .3509 .5966 .015 O(3) .5130 .1440 .7900 .049 Wat(4) -.0880 .4550 .9350 .059 O(5) .0130 .3746 .7780 .054 O(6) -.3160 .1764 .9690 .036 O(7) .8440 .2340 .8330 .037 O(8) .0280 .1451 .0940 .035 O(9) .6840 .2920 .7004 .030 O(10) .3700 .3022 .7074 .032 O(11) .2070 .2380 .8348 .029 O(12) .5410 .3314 .8904 .036 O(13) .3710 .1867 .9776 .021 O(14) .0360 .0993 .9098 .030 Wat(15) .7860 .6070 .8880 .041 Wat(16) .2390 .4930 .6900 .055 Wat(17) .2030 .5710 .8690 .062 Wat(18) .8080 .4980 .6390 .052 Wat(19) .5900 .4760 .7980 .082 O(20) .0380 .1998 .6699 .033