Pezzottaite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060583 Yakubivich O V, Pekov I V, Steele I M, Massa W, Chukanov N V Crystallography Reports 54 (2009) 399-412 Alkali metals in beryl and their role in the formation of derivative structural motifs: Comparative crystal chemistry of vorobyevite and pezzottaite Locality: Sakavalana granitic pegmatite, Antsirabe, Fianarantsoa Province, Madagascar Note: T = 100 K _database_code_amcsd 0012413 CELL PARAMETERS: 15.96364 15.96364 27.84546 90.00000 90.00000 120.0000 SPACE GROUP: R-3c X-RAY WAVELENGTH: 1.541838 MAX. ABS. INTENSITY / VOLUME**2: 25.85333483 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.18 3.21 4.6409 0 0 6 19.31 13.67 4.6083 3 0 0 22.21 2.97 4.0120 1 1 6 22.33 1.84 3.9909 2 2 0 27.32 50.09 3.2700 0 3 6 27.32 49.91 3.2700 3 0 6 29.56 41.56 3.0259 2 2 6 29.65 29.07 3.0168 4 1 0 31.22 20.54 2.8691 1 4 3 31.22 20.74 2.8691 4 1 3 33.73 7.61 2.6606 3 3 0 38.84 7.72 2.3205 0 0 12 39.06 5.81 2.3082 3 3 6 39.13 3.91 2.3042 6 0 0 40.52 10.63 2.2282 1 1 12 40.79 9.58 2.2138 5 2 0 41.99 1.63 2.1534 2 5 3 41.99 1.67 2.1534 5 2 3 43.90 3.19 2.0638 0 6 6 43.90 3.02 2.0638 6 0 6 45.42 1.04 1.9981 2 5 6 45.42 1.14 1.9981 5 2 6 49.58 3.22 1.8393 1 4 12 49.58 3.15 1.8393 4 1 12 49.76 2.94 1.8332 4 4 6 50.73 1.93 1.8004 2 5 9 50.73 1.81 1.8004 5 2 9 52.34 12.83 1.7488 3 3 12 52.56 11.86 1.7418 6 3 0 53.55 2.77 1.7119 3 6 3 53.55 2.94 1.7119 6 3 3 53.84 3.62 1.7034 1 7 6 53.84 3.70 1.7034 7 1 6 56.28 6.89 1.6350 0 6 12 56.28 6.81 1.6350 6 0 12 56.44 3.16 1.6307 3 6 6 56.44 3.11 1.6307 6 3 6 58.59 1.24 1.5758 1 7 9 58.59 1.21 1.5758 7 1 9 61.02 1.06 1.5187 1 1 18 61.06 3.17 1.5178 3 6 9 61.06 3.28 1.5178 6 3 9 61.43 1.18 1.5096 5 5 6 61.48 3.69 1.5084 8 2 0 63.44 3.03 1.4665 0 3 18 63.44 3.05 1.4665 3 0 18 63.84 2.76 1.4583 0 9 6 63.84 2.71 1.4583 9 0 6 64.62 2.33 1.4424 2 2 18 67.21 2.30 1.3930 3 6 12 67.21 2.25 1.3930 6 3 12 70.41 1.94 1.3373 3 3 18 70.83 1.31 1.3303 6 6 0 73.77 1.26 1.2844 0 6 18 73.77 1.30 1.2844 6 0 18 74.14 7.17 1.2788 6 6 6 74.19 3.77 1.2781 9 3 0 74.73 1.27 1.2702 3 6 15 74.73 1.19 1.2702 6 3 15 75.01 1.41 1.2662 3 9 3 75.01 1.41 1.2662 9 3 3 75.11 2.44 1.2647 8 2 12 75.11 2.41 1.2647 2 8 12 78.17 1.23 1.2226 4 4 18 78.40 1.12 1.2196 7 4 12 78.40 1.15 1.2196 4 7 12 78.84 1.42 1.2139 4 1 21 78.84 1.44 1.2139 1 4 21 79.30 1.52 1.2080 1 10 9 79.30 1.58 1.2080 10 1 9 83.27 2.09 1.1602 0 0 24 87.02 1.87 1.1195 3 9 12 87.02 1.87 1.1195 9 3 12 87.15 1.09 1.1181 12 0 6 87.15 1.09 1.1181 12 0 6 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.