Arrojadite-(KNa) Camara F, Oberti R, Chopin C, Medenbach O American Mineralogist 91 (2006) 1249-1259 The arrojadite enigma: I. A new formula and a new model for the arrojadite structure Sample: Rapid Creek, Yukon, Canada _database_code_amcsd 0004190 CELL PARAMETERS: 16.5520 10.0529 24.6477 90.000 106.509 90.000 SPACE GROUP: Cc X-RAY WAVELENGTH: 1.541838 Cell Volume: 3932.195 Density (g/cm3): 3.417 MAX. ABS. INTENSITY / VOLUME**2: 9.687715462 RIR: 0.923 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.48 7.03 11.8158 0 0 2 1 10.42 1.03 8.4924 1 1 0 2 10.52 1.66 8.4093 -1 1 1 2 11.15 2.72 7.9348 2 0 0 1 11.53 10.93 7.6734 -2 0 2 1 11.60 1.17 7.6312 1 1 1 2 11.87 6.58 7.4541 -1 1 2 2 13.74 16.47 6.4470 1 1 2 2 14.12 3.31 6.2702 -1 1 3 2 15.00 10.17 5.9079 0 0 4 1 15.12 24.48 5.8614 2 0 2 1 15.96 8.91 5.5547 -2 0 4 1 17.64 30.87 5.0265 0 2 0 2 18.55 2.15 4.7836 -3 1 2 2 19.19 3.47 4.6253 0 2 2 2 19.57 7.08 4.5371 1 1 4 2 20.97 2.34 4.2373 0 2 3 2 21.13 4.03 4.2047 -2 2 2 2 21.51 5.24 4.1320 -4 0 2 1 21.82 1.55 4.0728 2 2 1 2 22.11 1.16 4.0198 3 1 2 2 22.41 1.45 3.9674 4 0 0 1 23.23 1.69 3.8283 0 2 4 2 24.44 1.34 3.6421 3 1 3 2 25.30 1.43 3.5208 2 2 3 2 25.64 5.48 3.4749 -3 1 6 2 25.88 3.34 3.4432 0 2 5 2 25.99 3.07 3.4285 -2 2 5 2 26.35 15.68 3.3821 1 1 6 2 26.99 1.18 3.3037 -4 0 6 1 27.12 12.12 3.2886 3 1 4 2 27.20 4.55 3.2787 1 3 0 2 27.67 2.76 3.2235 2 2 4 2 27.69 2.18 3.2219 1 3 1 2 27.81 18.30 3.2082 -1 3 2 2 28.01 33.24 3.1857 2 0 6 1 28.05 1.81 3.1808 -4 2 1 2 28.44 3.71 3.1381 -3 1 7 2 28.47 1.94 3.1351 -2 2 6 2 28.68 1.92 3.1126 1 3 2 2 28.70 1.62 3.1102 -5 1 1 2 28.80 1.15 3.1002 0 2 6 2 29.28 5.33 3.0499 -5 1 4 2 29.28 94.67 3.0498 -4 2 4 2 30.13 1.38 2.9658 1 3 3 2 30.45 2.52 2.9356 -5 1 5 2 30.49 1.08 2.9318 -1 1 8 2 31.29 1.66 2.8583 4 2 2 2 31.35 16.82 2.8529 -3 3 2 2 31.49 8.92 2.8414 -3 1 8 2 31.61 8.21 2.8308 3 3 0 2 31.93 1.72 2.8031 -3 3 3 2 31.93 2.94 2.8025 0 2 7 2 31.99 11.65 2.7979 1 3 4 2 32.04 16.65 2.7933 -5 1 6 2 32.23 20.84 2.7774 -4 0 8 1 32.30 1.35 2.7712 -1 3 5 2 32.42 3.94 2.7615 3 3 1 2 32.43 2.18 2.7607 -4 2 6 2 32.52 19.51 2.7532 -6 0 2 1 32.94 2.32 2.7191 -3 3 4 2 33.21 3.86 2.6980 3 1 6 2 33.30 68.09 2.6908 2 2 6 2 33.66 4.93 2.6627 3 3 2 2 34.24 1.49 2.6188 -2 2 8 2 34.55 9.72 2.5959 -1 3 6 2 35.08 4.42 2.5578 -6 0 6 1 35.24 7.14 2.5467 0 2 8 2 35.46 15.18 2.5318 4 2 4 2 35.73 16.13 2.5132 0 4 0 2 36.46 2.41 2.4645 -2 0 10 1 36.98 13.17 2.4309 -4 2 8 2 37.24 12.71 2.4147 -6 2 2 2 37.25 1.57 2.4138 3 3 4 2 37.61 5.04 2.3918 -6 2 4 2 37.94 1.08 2.3717 -1 1 10 2 38.08 1.04 2.3632 0 0 10 1 38.38 1.76 2.3451 -6 2 5 2 38.91 1.29 2.3146 -5 3 4 2 38.94 1.28 2.3127 0 4 4 2 39.09 5.53 2.3044 5 3 0 2 39.14 2.02 2.3017 -7 1 3 2 39.42 1.19 2.2859 1 3 7 2 39.64 1.28 2.2739 6 2 1 2 39.83 5.98 2.2634 -5 3 5 2 39.98 3.49 2.2553 3 1 8 2 40.66 2.71 2.2190 0 4 5 2 40.80 1.22 2.2116 7 1 0 2 40.89 5.98 2.2072 -7 1 6 2 41.03 1.42 2.2000 -6 2 7 2 42.08 2.46 2.1472 -4 4 2 2 42.26 2.44 2.1386 0 2 10 2 42.58 1.21 2.1231 4 4 0 2 42.68 2.26 2.1186 0 4 6 2 42.70 2.25 2.1175 -5 3 7 2 42.92 2.33 2.1070 2 0 10 1 42.99 1.64 2.1039 6 2 3 2 43.02 3.18 2.1023 -4 4 4 2 43.06 2.27 2.1006 4 0 8 1 43.82 1.06 2.0660 -8 0 4 1 44.93 1.55 2.0173 -6 2 9 2 45.11 1.43 2.0099 6 2 4 2 45.74 3.01 1.9837 8 0 0 1 45.87 4.45 1.9784 -1 5 2 2 46.72 1.52 1.9442 -2 4 8 2 46.75 5.09 1.9432 2 2 10 2 46.88 6.12 1.9382 4 2 8 2 47.19 1.37 1.9261 -7 3 2 2 47.21 1.03 1.9251 -7 3 4 2 47.29 1.48 1.9221 -6 2 10 2 47.39 8.67 1.9183 -8 0 8 1 47.42 1.49 1.9174 1 5 3 2 47.50 1.67 1.9142 0 4 8 2 47.67 1.72 1.9078 4 4 4 2 47.76 2.78 1.9043 3 3 8 2 48.26 3.51 1.8858 -3 5 2 2 48.43 1.45 1.8794 3 5 0 2 48.48 2.70 1.8777 7 3 0 2 48.64 1.44 1.8718 -8 2 6 2 48.87 3.23 1.8635 -4 4 8 2 49.08 2.90 1.8562 -6 4 2 2 49.19 2.07 1.8523 -3 3 11 2 49.60 1.06 1.8380 7 3 1 2 49.70 1.07 1.8346 -7 3 7 2 50.09 1.22 1.8211 6 2 6 2 50.95 1.69 1.7922 -8 2 8 2 51.01 2.84 1.7904 -8 0 10 1 51.01 2.29 1.7903 7 3 2 2 51.94 1.27 1.7604 4 4 6 2 51.97 7.86 1.7596 -2 4 10 2 52.09 6.50 1.7557 -2 0 14 1 52.13 1.15 1.7544 1 5 6 2 52.28 7.15 1.7498 6 4 2 2 52.41 2.28 1.7458 -3 3 12 2 52.57 1.33 1.7409 3 5 4 2 52.68 1.56 1.7374 -6 2 12 2 52.68 3.01 1.7374 8 0 4 1 52.79 1.28 1.7340 7 1 6 2 52.80 1.74 1.7337 -1 3 12 2 53.45 3.75 1.7142 -4 4 10 2 53.99 2.55 1.6985 5 5 0 2 54.59 5.05 1.6811 -1 5 8 2 54.61 1.22 1.6806 -5 1 14 2 54.71 1.22 1.6778 -5 3 12 2 54.94 1.26 1.6713 0 6 1 2 55.22 2.57 1.6636 -3 5 8 2 55.38 3.02 1.6589 0 6 2 2 55.44 5.09 1.6575 -2 2 14 2 55.57 2.60 1.6538 -5 5 6 2 55.64 2.15 1.6518 -8 0 12 1 55.84 1.70 1.6463 5 5 2 2 55.85 2.84 1.6461 1 3 12 2 55.98 1.28 1.6426 -10 0 6 1 56.00 7.75 1.6421 8 2 4 2 56.08 1.47 1.6399 -4 4 11 2 56.59 2.36 1.6263 1 5 8 2 56.78 1.07 1.6215 -3 1 15 2 57.14 1.00 1.6121 -9 3 4 2 57.34 1.10 1.6070 -3 5 9 2 57.59 1.48 1.6004 -10 0 8 1 57.77 1.41 1.5960 -8 4 4 2 57.89 6.22 1.5929 4 0 12 1 58.13 1.08 1.5870 10 0 0 1 58.81 1.21 1.5702 5 5 4 2 58.85 2.94 1.5693 -8 2 12 2 59.17 3.94 1.5614 -10 2 6 2 59.35 1.76 1.5571 8 4 0 2 59.39 1.38 1.5563 2 6 4 2 59.39 4.26 1.5562 6 0 10 1 60.00 1.55 1.5418 0 6 6 2 60.28 2.34 1.5355 -4 6 4 2 60.31 1.00 1.5347 -10 0 10 1 60.59 1.37 1.5283 -7 5 4 2 61.02 3.85 1.5185 4 2 12 2 61.09 1.31 1.5170 10 0 2 1 61.44 1.63 1.5092 4 6 2 2 61.81 1.81 1.5010 8 4 2 2 61.91 2.00 1.4989 9 3 2 2 62.28 2.59 1.4908 -5 5 10 2 62.54 1.02 1.4852 -9 3 10 2 62.65 2.47 1.4829 2 6 6 2 62.79 1.41 1.4799 5 5 6 2 62.81 1.19 1.4795 -9 1 13 2 62.93 1.18 1.4770 0 0 16 1 63.16 1.53 1.4722 -11 1 7 2 63.87 1.07 1.4574 0 6 8 2 64.12 1.52 1.4523 10 2 2 2 64.18 1.14 1.4510 -8 2 14 2 64.77 2.71 1.4393 -2 4 14 2 65.01 1.08 1.4346 -4 6 8 2 65.29 1.33 1.4292 8 4 4 2 65.43 3.37 1.4265 -6 6 4 2 65.73 1.12 1.4207 -6 2 16 2 65.92 3.28 1.4171 0 2 16 2 66.43 1.11 1.4074 -9 3 12 2 66.46 3.66 1.4068 8 2 8 2 68.72 1.11 1.3659 -9 3 13 2 69.06 1.13 1.3601 -11 3 7 2 69.65 1.19 1.3499 -10 4 8 2 69.92 2.48 1.3454 4 4 12 2 70.43 2.27 1.3370 -6 0 18 1 71.10 1.10 1.3260 7 3 10 2 71.24 1.00 1.3237 -9 3 14 2 71.28 1.54 1.3231 6 4 10 2 71.31 2.70 1.3225 12 0 0 1 71.60 1.43 1.3180 1 3 16 2 72.77 1.08 1.2996 10 2 6 2 73.26 2.11 1.2920 -6 2 18 2 76.81 1.50 1.2410 -7 1 19 2 84.17 1.19 1.1502 0 2 20 2 85.86 1.04 1.1319 -9 7 4 2 88.23 1.64 1.1075 -4 8 10 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.