Melilite Armbruster T, Rothlisberger F, Seifert F American Mineralogist 75 (1990) 847-858 Layer topology, stacking variation and site distortion in melilite-related compounds in the system CaO-ZnO-GeO2-SiO2 low-temperature polymorph Ca2ZnGe2O7 _database_code_amcsd 0001315 8.020 7.995 15.506 90 89.47 90 P2_1 atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) ZnA1 .7385 .9354 .1543 0.0147 0.0153 0.0123 -.0005 0.0018 0.0020 ZnA2 .2553 .4237 .1646 0.0212 0.0153 0.0122 0.0001 0.0023 -.0007 GeA3 .3928 .7837 .1464 0.0145 0.0097 0.0081 0.0001 0.0019 -.0019 GeA4 .6120 .2840 .1913 0.0197 0.0223 0.0103 -.0016 0.0047 -.0021 GeA5 .8869 .5788 .1836 0.0205 0.0150 0.0052 0.0017 0.0011 -.0013 GeA6 .1028 .0643 .1508 0.0119 0.0141 0.0071 0.0001 -.0003 0.0005 ZnB1 .2668 .7644 .5085 0.0153 0.0145 0.0121 -.0005 0.0024 0.0022 GeB2 .3875 .4077 .4721 0.0178 0.0129 0.0088 0.0012 0.0034 0.0003 GeB3 .8930 .6183 .5169 0.0128 0.0146 0.0052 -.0005 -.0008 -.0002 Caa1 .4168 .0996 .0004 0.041 0.055 0.012 -.031 0.000 0.009 Caa2 .0814 .7646 -.0052 0.047 0.058 0.013 -0.037 0.002 -0.006 Cab1 .4042 .0684 .3308 0.031 0.026 0.012 0.012 0.012 0.007 Cab2 .6011 .6316 .3373 0.026 0.034 0.015 0.017 0.010 0.013 Cab3 -.002 .346 .3297 .61 0.091 0.087 0.047 0.039 0.023 0.043 Cab4a .125 .757 .3254 .37 0.027 0.022 0.006 -0.015 0.008 -0.002 Cab4b .172 .696 .331 .41 .06 0.18 0.041 -0.01 -0.007 -0.03 Cab5a .866 .936 .3437 .52 0.035 0.027 0.009 -0.003 0.005 -0.004 Cab5b .834 .01 .332 .35 .11 0.17 0.03 -0.05 0.01 -0.02 OA1 .562 .858 .0848 0.030 0.09 0.009 -0.033 0.004 -0.006 OA2 .104 .061 .2612 0.029 0.049 0.001 0.008 0.000 -0.002 OA3 .077 .541 .2297 0.027 0.054 0.009 0.021 0.002 -0.005 OA4 .241 .920 .1034 .09 0.08 .01510 0.07 -0.004 -0.012 OA5 .353 .602 .096 0.13 0.018 0.029 -0.034 0.04 -0.012 OA6 .401 .797 .2578 0.028 0.017 0.011 0.006 -0.001 0.002 OA7 .420 .329 .2393 0.030 0.18 0.026 0.05 0.012 0.04 OA8 .168 .247 .0980 0.14 0.023 0.023 -0.040 -0.021 0.012 OA9 .811 .762 .2343 0.062 0.033 0.010 0.028 0.003 0.004 OA10 .748 .438 .2338 0.059 0.049 .01510 -0.038 0.007 -0.005 OA11 .670 .100 .2435 0.11 0.025 0.019 0.008 0.032 -0.004 OA12 .624 .281 .0802 0.053 0.08 0.008 -0.036 0.008 -0.012 OA13 .881 .581 .0719 0.043 0.037 .01500 -0.013 0.007 0.000 OA14 .931 .012 .0906 0.030 0.14 0.024 -0.045 -0.007 0.024 OB1 .113 .136 .5934 0.024 0.029 .01500 -0.002 -0.002 -0.001 OB2 .601 .908 .4157 0.023 0.030 0.009 0.005 0.008 -0.003 OB3 .183 .940 .4316 0.072 0.025 0.008 0.025 0.009 0.004 OB4 .344 .602 .423 0.09 0.019 0.025 0.017 0.029 0.009 OB5 .235 .274 .4315 0.07 0.07 .01500 -0.05 0.001 0.002 OB6 .916 .162 .4345 0.020 0.053 0.009 0.011 -0.002 -0.015 OB7 .567 .352 .4174 0.030 0.13 0.011 0.043 0.004 0.012