Whitlockite Hughes J M, Jolliff B L, Rakovan J American Mineralogist 93 (2008) 1300-1305 The crystal chemistry of whitlockite and merrillite and the dehydrogenation of whitlockite to merrillite Locality: Tip Top Pegmatite, Custer County, South Dakota _database_code_amcsd 0004623 CELL PARAMETERS: 10.3477 10.3477 37.0770 90.000 90.000 120.000 SPACE GROUP: R3c X-RAY WAVELENGTH: 1.541838 Cell Volume: 3438.135 Density (g/cm3): 3.050 MAX. ABS. INTENSITY / VOLUME**2: 10.80561645 RIR: 1.154 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 10.97 8.90 8.0682 0 1 2 3 13.74 14.54 6.4427 1 0 4 3 17.14 46.49 5.1739 1 1 0 6 20.39 5.10 4.3553 2 0 2 3 21.59 1.55 4.1167 0 1 8 3 22.03 15.04 4.0341 0 2 4 3 22.41 2.08 3.9670 1 1 6 6 26.01 38.63 3.4260 1 0 10 3 26.42 3.66 3.3730 2 1 1 6 26.76 9.85 3.3319 1 2 2 6 27.68 3.05 3.2228 1 1 9 6 27.69 1.88 3.2214 2 0 8 3 28.05 57.94 3.1813 2 1 4 6 28.90 1.04 3.0898 0 0 12 1 29.91 12.09 2.9871 3 0 0 3 31.31 100.00 2.8565 0 2 10 3 32.75 19.15 2.7346 1 2 8 6 33.32 4.78 2.6894 0 3 6 3 33.32 2.60 2.6894 3 0 6 3 33.79 3.87 2.6527 1 1 12 6 34.68 71.68 2.5869 2 2 0 6 35.34 3.83 2.5398 0 1 14 3 35.45 4.75 2.5321 2 2 3 6 35.91 14.27 2.5007 2 1 10 6 36.22 2.83 2.4799 1 3 1 6 37.46 2.97 2.4006 1 3 4 6 37.65 2.58 2.3892 1 2 11 6 37.70 5.27 2.3863 2 2 6 6 38.19 4.10 2.3566 3 1 5 6 40.20 6.30 2.2435 1 0 16 3 40.44 2.70 2.2303 1 1 15 6 41.39 1.32 2.1816 2 1 13 6 41.47 8.75 2.1776 4 0 4 3 42.07 3.84 2.1476 0 3 12 3 42.07 10.74 2.1476 3 0 12 3 43.37 2.49 2.0863 1 2 14 6 43.96 1.86 2.0598 0 0 18 1 43.99 1.31 2.0583 0 2 16 3 44.12 2.31 2.0527 3 2 1 6 44.33 3.41 2.0434 2 3 2 6 44.94 13.90 2.0170 0 4 8 3 45.18 3.16 2.0071 3 2 4 6 45.74 6.32 1.9835 2 2 12 6 47.05 1.48 1.9315 1 4 3 6 47.41 26.41 1.9175 4 0 10 3 47.51 2.14 1.9137 1 1 18 6 48.44 14.23 1.8793 2 3 8 6 48.85 6.20 1.8644 1 4 6 6 48.85 8.61 1.8644 4 1 6 6 50.26 3.36 1.8154 0 1 20 3 50.78 10.18 1.7980 3 2 10 6 51.21 4.37 1.7840 5 0 2 3 51.75 3.33 1.7666 4 1 9 6 51.97 9.55 1.7597 0 5 4 3 53.10 1.30 1.7246 3 3 0 6 53.49 33.27 1.7130 2 0 20 3 54.08 1.74 1.6957 0 3 18 3 54.08 3.36 1.6957 3 0 18 3 54.11 1.87 1.6949 1 3 16 6 54.25 1.10 1.6909 2 1 19 6 54.93 5.27 1.6716 5 0 8 3 55.13 3.94 1.6660 2 4 4 6 55.62 1.80 1.6524 4 1 12 6 56.68 2.62 1.6240 2 3 14 6 57.19 3.36 1.6107 4 0 16 3 57.97 2.29 1.5908 3 3 9 6 57.98 1.54 1.5907 4 2 8 6 58.17 1.68 1.5858 5 1 4 6 60.06 8.89 1.5405 2 4 10 6 60.17 6.39 1.5379 3 2 16 6 60.93 2.27 1.5204 1 5 8 6 61.45 2.01 1.5089 2 1 22 6 61.58 1.04 1.5059 3 3 12 6 62.15 3.54 1.4936 6 0 0 3 63.99 4.29 1.4550 4 3 4 6 64.99 2.16 1.4350 5 2 0 6 65.33 4.65 1.4283 0 4 20 3 65.86 1.27 1.4182 1 4 18 6 66.61 4.38 1.4040 3 4 8 6 66.94 2.32 1.3978 2 5 6 6 66.94 3.83 1.3978 5 2 6 6 67.10 1.03 1.3949 1 3 22 6 68.10 2.46 1.3768 2 3 20 6 68.74 1.13 1.3657 1 6 1 6 72.10 1.06 1.3100 1 0 28 3 73.17 4.20 1.2935 4 4 0 6 73.57 1.12 1.2874 3 4 14 6 74.11 2.18 1.2794 3 5 1 6 74.26 1.38 1.2772 5 3 2 6 76.13 7.04 1.2504 4 2 20 6 76.64 1.45 1.2433 4 3 16 6 76.76 1.18 1.2417 5 1 19 6 76.89 1.35 1.2399 2 6 2 6 77.18 1.75 1.2359 0 0 30 1 77.33 1.31 1.2340 5 3 8 6 77.50 3.20 1.2317 6 2 4 6 78.98 1.19 1.2122 4 1 24 6 80.50 1.44 1.1931 4 4 12 6 81.01 1.65 1.1870 7 1 0 6 81.73 1.33 1.1783 6 2 10 6 81.80 2.58 1.1774 2 5 18 6 82.28 3.31 1.1717 2 3 26 6 84.92 1.67 1.1420 3 0 30 3 86.94 3.14 1.1206 7 0 16 3 87.39 1.91 1.1159 5 0 26 3 87.47 5.14 1.1152 2 2 30 6 87.66 2.04 1.1132 3 2 28 6 88.18 1.00 1.1080 7 1 12 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.