Maricopaite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R120147 Rouse R C, Peacor D R American Mineralogist 79 (1994) 175-184 Maricopaite, an unusual lead calcium zeolite with an interrupted mordenite-like framework and intrachannel Pb4 tetrahedral clusters _database_code_amcsd 0001636 CELL PARAMETERS: 19.4040 19.6980 7.5350 90.000 90.000 90.000 SPACE GROUP: Cm2m ATOM X Y Z OCCUPANCY ISO(B) Pb 0.09750 0.10440 0.50000 0.830 2.250 Pb 0.09770 0.89880 0.00000 0.245 1.830 Pb 0.00000 0.96620 0.23770 0.623 2.290 Pb 0.00000 0.03590 0.25160 0.175 3.400 Si 0.17900 0.29070 0.29560 0.758 1.170 Al 0.17900 0.29070 0.29560 0.242 1.170 Si 0.32110 0.21690 0.20430 0.758 1.380 Al 0.32110 0.21690 0.20430 0.242 1.380 Si 0.25460 0.92830 0.20760 0.758 1.180 Al 0.25460 0.92830 0.20760 0.242 1.180 Si 0.13950 0.92380 0.50000 0.758 1.000 Al 0.13950 0.92380 0.50000 0.242 1.000 Si 0.13420 0.08430 0.00000 0.758 1.100 Al 0.13420 0.08430 0.00000 0.242 1.100 Si 0.25540 0.07790 0.28850 0.758 1.260 Al 0.25540 0.07790 0.28850 0.242 1.260 Si 0.07940 0.23110 0.00000 0.758 1.600 Al 0.07940 0.23110 0.00000 0.242 1.600 Si 0.08170 0.77630 0.50000 0.758 1.100 Al 0.08170 0.77630 0.50000 0.242 1.100 O 0.18610 0.92000 0.32500 1.000 2.900 O 0.08100 0.14410 0.00000 1.000 2.300 O 0.09320 0.99160 0.50000 1.000 3.800 O 0.08620 0.85860 0.50000 1.000 1.400 O 0.34430 0.23070 0.00000 1.000 2.200 O 0.18200 0.08640 0.18110 1.000 1.700 O 0.31340 0.13420 0.24170 1.000 2.300 O 0.16070 0.27690 0.50000 1.000 3.500 O 0.08630 0.01620 0.00000 1.000 2.400 O 0.18650 0.37080 0.26410 1.000 2.000 O 0.25000 0.25360 0.25060 1.000 3.600 O 0.11640 0.26040 0.17610 1.000 3.000 O 0.38320 0.24240 0.32180 1.000 3.300 O 0.28970 0.00300 0.24600 1.000 2.500 O 0.22780 0.92190 0.00000 1.000 2.500 O 0.23400 0.08380 0.50000 1.000 2.000 O 0.00000 0.25300 0.00000 1.000 2.500 O 0.00000 0.75570 0.50000 1.000 2.600 Wa 0.00000 0.08280 0.30980 0.925 2.200 Wa 0.00000 0.23100 0.50000 0.950 2.600 Wa 0.08500 0.56100 0.00000 0.600 2.600 Wa 0.00000 0.50100 0.09900 0.500 2.600 Wa 0.06100 0.59400 0.50000 0.275 2.600 Wa 0.07700 0.45600 0.24100 0.175 2.600 Wa 0.07400 0.45700 0.38500 0.200 2.600 Wa 0.07900 0.87100 0.00000 0.575 2.600 Wa 0.07000 0.15100 0.50000 0.175 2.600 Wa 0.00000 0.93300 0.21500 0.475 2.600 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 17 +/- 18 +/- 6 MAX. ABS. INTENSITY / VOLUME**2: 113.9004299 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 6.39 100.00 13.8235 1 1 0 8.98 4.22 9.8490 0 2 0 11.74 1.08 7.5350 0 0 1 12.81 2.45 6.9117 2 2 0 13.38 1.95 6.6160 1 1 1 14.41 1.93 6.1452 3 1 0 14.80 1.73 5.9845 0 2 1 18.50 4.80 4.7966 1 3 1 20.41 4.31 4.3518 4 2 0 21.56 1.89 4.1222 0 4 1 23.04 1.98 3.8608 1 5 0 25.36 2.09 3.5120 2 0 2 25.78 1.46 3.4559 4 4 0 26.49 3.20 3.3646 3 5 0 26.68 3.33 3.3409 5 3 0 26.95 2.02 3.3080 2 2 2 27.16 4.28 3.2830 0 6 0 27.68 4.23 3.2224 1 3 2 27.78 6.01 3.2119 3 1 2 29.24 3.07 3.0541 5 3 1 29.68 1.36 3.0097 0 6 1 29.86 2.06 2.9922 0 4 2 30.03 5.79 2.9755 4 0 2 31.41 3.72 2.8484 4 2 2 31.44 2.00 2.8451 6 2 1 33.14 1.18 2.7032 6 4 0 33.46 3.57 2.6781 5 1 2 36.62 2.64 2.4539 6 0 2 40.67 1.78 2.2186 7 1 2 47.71 1.01 1.9064 5 9 0 48.32 1.69 1.8837 0 0 4 48.32 1.15 1.8836 1 9 2 48.79 1.14 1.8665 1 1 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.