Chiappinoite-(Y) Kampf A R, Housley R M European Journal of Mineralogy 27 (2015) 91-97 Chiappinoite-(Y), Y2Mn(Si3O7)4, a new layer silicate found in peralkaline syenitic ejecta from the Agua de Pau volcano, Azores Locality: Agua de Pau volcano, San Miguel Island, Azores District, Portugal _database_code_amcsd 0020339 CELL PARAMETERS: 7.5549 15.2342 19.6418 90.000 90.000 90.000 SPACE GROUP: Ibam X-RAY WAVELENGTH: 1.541838 Cell Volume: 2260.631 Density (g/cm3): 3.073 MAX. ABS. INTENSITY / VOLUME**2: 16.47491634 RIR: 1.745 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.00 100.00 9.8209 0 0 2 2 11.62 12.15 7.6171 0 2 0 2 13.08 1.44 6.7683 1 1 0 4 14.72 8.33 6.0189 0 2 2 4 15.90 2.62 5.5730 1 1 2 8 18.07 14.33 4.9104 0 0 4 2 21.53 61.77 4.1272 0 2 4 4 22.37 42.98 3.9746 1 1 4 8 23.36 6.86 3.8085 0 4 0 2 23.55 5.30 3.7775 2 0 0 2 24.70 8.65 3.6042 2 1 1 8 25.08 37.79 3.5509 0 4 2 4 25.26 47.64 3.5256 2 0 2 4 26.34 14.20 3.3842 2 2 0 4 26.60 19.95 3.3510 1 4 1 8 27.24 7.73 3.2736 0 0 6 2 27.88 23.82 3.1995 2 2 2 8 27.89 2.24 3.1990 2 1 3 8 27.90 12.59 3.1981 1 3 4 8 29.60 2.76 3.0180 1 4 3 8 29.69 22.43 3.0095 0 4 4 4 29.70 5.44 3.0076 0 2 6 4 29.83 7.13 2.9954 2 3 1 8 29.84 23.16 2.9940 2 0 4 4 30.33 4.02 2.9470 1 1 6 8 31.66 7.72 2.8257 1 5 0 4 32.99 12.83 2.7155 1 5 2 8 33.41 9.44 2.6820 2 4 0 4 34.67 5.58 2.5872 2 4 2 8 35.35 2.22 2.5390 0 6 0 2 36.15 5.67 2.4846 3 1 0 4 36.18 24.55 2.4826 0 4 6 4 36.31 26.36 2.4739 2 0 6 4 36.55 3.27 2.4582 0 6 2 4 36.60 2.99 2.4552 0 0 8 2 36.69 2.54 2.4491 1 5 4 8 37.33 4.01 2.4087 3 1 2 8 38.23 1.86 2.3544 2 5 1 8 38.24 11.82 2.3538 2 4 4 8 38.25 7.03 2.3529 2 2 6 8 38.53 6.05 2.3368 0 2 8 4 39.02 2.46 2.3081 1 1 8 8 42.25 6.68 2.1390 1 5 6 8 42.62 1.29 2.1215 1 3 8 8 43.26 2.94 2.0913 1 7 0 4 43.32 3.47 2.0887 3 4 1 8 43.63 17.80 2.0746 2 4 6 8 43.87 3.51 2.0636 0 4 8 4 43.95 1.88 2.0604 2 6 2 8 43.99 4.81 2.0586 2 0 8 4 44.13 5.80 2.0522 1 6 5 8 44.28 5.59 2.0454 1 7 2 8 44.35 4.72 2.0424 3 2 5 8 45.19 1.57 2.0063 0 6 6 4 45.65 2.21 1.9873 2 2 8 8 46.22 3.91 1.9642 0 0 10 2 46.80 1.47 1.9411 3 5 0 4 46.92 6.99 1.9365 2 6 4 8 47.76 2.95 1.9043 0 8 0 2 47.76 4.42 1.9043 3 5 2 8 48.18 5.95 1.8887 4 0 0 2 48.50 1.05 1.8771 2 7 1 8 48.71 1.09 1.8695 0 8 2 4 48.81 1.35 1.8659 4 1 1 8 49.04 1.14 1.8577 3 3 6 8 49.12 2.48 1.8547 4 0 2 4 49.16 5.04 1.8533 1 5 8 8 49.59 3.10 1.8384 1 8 1 8 50.39 11.05 1.8110 2 4 8 8 50.56 7.51 1.8052 3 5 4 8 50.66 1.86 1.8021 4 2 2 8 51.47 1.09 1.7754 0 8 4 4 51.86 1.21 1.7631 4 3 1 8 51.87 4.77 1.7628 4 0 4 4 51.88 1.50 1.7624 1 7 6 8 52.51 1.85 1.7427 2 0 10 4 53.34 7.29 1.7174 4 2 4 8 53.92 4.35 1.7004 2 8 0 4 53.98 10.46 1.6988 2 2 10 8 54.21 5.93 1.6921 4 4 0 4 54.79 3.36 1.6755 2 8 2 8 55.00 2.22 1.6696 3 5 6 8 55.07 7.13 1.6675 4 4 2 8 55.64 1.81 1.6517 1 9 0 4 56.20 5.97 1.6368 0 0 12 2 56.50 4.73 1.6289 1 9 2 8 56.68 1.05 1.6240 3 7 2 8 57.11 6.65 1.6128 1 5 10 8 57.62 2.05 1.5998 4 4 4 8 57.63 1.31 1.5995 4 2 6 8 58.22 6.34 1.5847 2 4 10 8 59.00 6.03 1.5655 1 9 4 8 59.18 2.90 1.5612 3 7 4 8 59.50 2.42 1.5536 0 6 10 4 60.04 2.82 1.5408 3 1 10 8 60.83 1.10 1.5227 3 5 8 8 61.71 1.14 1.5032 4 4 6 8 61.99 2.22 1.4970 4 0 8 4 62.72 1.13 1.4814 3 3 10 8 63.04 3.54 1.4747 1 9 6 8 63.09 1.71 1.4735 2 2 12 8 63.31 1.80 1.4689 4 2 8 8 63.94 4.33 1.4560 1 10 3 8 64.46 3.80 1.4455 5 2 3 8 64.85 1.06 1.4377 5 1 4 8 65.04 2.30 1.4340 1 6 11 8 65.16 2.78 1.4317 1 7 10 8 65.21 2.15 1.4307 3 2 11 8 65.95 1.58 1.4164 1 5 12 8 66.56 2.31 1.4048 3 9 0 4 66.98 1.90 1.3972 2 4 12 8 67.05 1.14 1.3959 1 10 5 8 67.19 1.44 1.3933 4 4 8 8 67.33 2.65 1.3907 3 9 2 8 68.46 1.80 1.3705 1 9 8 8 68.63 1.32 1.3675 3 7 8 8 69.61 1.23 1.3506 3 9 4 8 70.18 1.39 1.3410 5 5 2 8 71.69 3.89 1.3165 0 4 14 4 71.77 4.62 1.3152 2 0 14 4 71.93 2.28 1.3127 1 11 4 8 73.16 2.30 1.2936 4 8 4 8 73.33 1.45 1.2910 3 9 6 8 73.93 2.25 1.2820 4 4 10 8 74.18 1.73 1.2784 3 10 3 8 74.50 1.60 1.2736 5 6 3 8 75.61 1.10 1.2577 1 11 6 8 76.06 1.17 1.2513 3 5 12 8 76.09 1.13 1.2509 5 5 6 8 76.81 2.50 1.2409 4 8 6 8 77.11 1.62 1.2369 4 0 12 4 77.44 2.24 1.2324 1 10 9 8 77.80 1.06 1.2276 0 0 16 2 77.92 1.96 1.2261 5 2 9 8 78.40 1.05 1.2197 6 0 4 4 78.43 1.74 1.2193 3 9 8 8 79.96 2.07 1.1998 4 6 10 8 80.66 1.40 1.1912 1 11 8 8 81.02 2.22 1.1867 6 4 2 8 81.88 1.47 1.1765 4 4 12 8 81.99 1.58 1.1752 6 0 6 4 82.62 1.06 1.1678 2 6 14 8 83.07 1.09 1.1626 1 9 12 8 83.16 1.06 1.1616 6 4 4 8 83.25 1.27 1.1606 5 7 6 8 84.19 1.44 1.1500 1 13 2 8 84.59 1.40 1.1455 1 10 11 8 84.86 2.23 1.1427 3 9 10 8 85.06 1.11 1.1404 5 2 11 8 85.37 1.58 1.1371 3 5 14 8 86.71 1.31 1.1230 6 4 6 8 86.96 1.13 1.1204 6 0 8 4 87.01 1.10 1.1199 5 9 2 8 87.36 1.07 1.1162 2 4 16 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.