Byzantievite Sokolova E, Hawthorne F C, Pautov L A, Agakhanov A A Mineralogical Magazine 74 (2010) 285-308 Byzantievite, Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O21[(OH),F]43(H2O)1.5: the crystal structure and crystal chemistry of the only known mineral with the oxyanions (BO3), (SiO4) and (PO4) Locality: Alai ridge, Tien-Shan Mountains, northern Tajikistan _database_code_amcsd 0014601 CELL PARAMETERS: 9.1202 9.1202 102.1450 90.000 90.000 120.000 SPACE GROUP: R3 X-RAY WAVELENGTH: 1.541838 Cell Volume: 7357.944 Density (g/cm3): 4.003 MAX. ABS. INTENSITY / VOLUME**2: 97.65516227 RIR: 7.943 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 2.59 100.00 34.0483 0 0 3 1 5.19 5.69 17.0242 0 0 6 1 7.79 1.67 11.3494 0 0 9 1 10.39 3.38 8.5121 0 0 12 1 13.00 3.60 6.8097 0 0 15 1 18.24 2.10 4.8640 0 0 21 1 19.47 1.48 4.5601 1 1 0 3 19.64 3.00 4.5197 2 -1 3 3 19.64 4.10 4.5197 1 1 3 3 20.16 1.17 4.4048 2 -1 6 3 20.87 1.46 4.2560 0 0 24 1 21.00 6.12 4.2313 2 -1 9 3 21.00 5.64 4.2313 1 1 9 3 22.11 1.47 4.0196 2 -1 12 3 22.11 7.90 4.0196 1 1 12 3 22.53 1.29 3.9462 0 2 1 3 26.80 2.68 3.3267 1 1 21 3 28.69 13.99 3.1114 1 1 24 3 28.69 18.02 3.1114 2 -1 24 3 28.84 1.17 3.0953 0 0 33 1 29.37 1.04 3.0410 1 0 31 3 29.94 1.58 2.9840 2 1 1 3 29.94 1.68 2.9840 3 -1 1 3 29.98 1.19 2.9802 -1 3 2 3 29.98 1.18 2.9802 1 2 2 3 30.20 1.09 2.9595 0 1 32 3 30.71 1.60 2.9116 1 1 27 3 30.71 2.88 2.9116 2 -1 27 3 32.14 1.05 2.7852 2 0 26 3 34.05 12.65 2.6328 3 0 0 3 34.47 1.33 2.6018 0 3 6 3 34.47 1.78 2.6018 3 0 6 3 35.04 3.03 2.5610 1 1 33 3 35.04 2.56 2.5610 2 -1 33 3 37.33 1.09 2.4091 2 -1 36 3 39.89 1.72 2.2599 2 2 6 3 40.98 2.47 2.2024 4 -2 12 3 41.78 1.79 2.1621 4 -2 15 3 41.78 1.34 2.1621 2 2 15 3 42.48 4.44 2.1280 0 0 48 1 45.11 1.54 2.0098 2 2 24 3 46.50 1.20 1.9528 2 2 27 3 47.09 2.45 1.9299 0 3 36 3 47.09 2.26 1.9299 3 0 36 3 48.02 1.37 1.8945 2 2 30 3 49.66 2.03 1.8358 4 -2 33 3 49.66 1.90 1.8358 2 2 33 3 55.06 1.44 1.6679 1 1 57 3 55.06 1.18 1.6679 2 -1 57 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.