Zirkelite Mazzi F, Munno R American Mineralogist 68 (1983) 262-276 Calciobetafite (new mineral of the pyrochlore group) and related minerals from Campi Flegrei, Italy; crystal structures of polymignyte and zirkelite: comparison with pyrochlore and zirconolite Note: B(2,3) for Ti61 has been changed to satisfy symmetry constraints _database_code_amcsd 0000893 CELL PARAMETERS: 7.2870 7.2870 16.8860 90.000 90.000 120.000 SPACE GROUP: P3_121 X-RAY WAVELENGTH: 1.541838 Cell Volume: 776.524 Density (g/cm3): 5.498 MAX. ABS. INTENSITY / VOLUME**2: 109.5724082 RIR: 6.489 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.74 1.85 5.6287 0 0 3 2 25.38 3.99 3.5088 0 1 4 6 26.65 2.73 3.3453 1 1 2 6 28.78 1.25 3.1017 0 2 1 6 30.24 99.91 2.9557 2 0 2 6 31.80 27.45 2.8143 0 0 6 2 35.52 29.34 2.5274 0 2 4 6 39.07 4.23 2.3056 2 0 5 6 39.25 1.09 2.2954 2 1 2 6 45.07 1.46 2.0114 1 1 7 6 49.93 1.43 1.8264 1 1 8 6 50.07 30.70 1.8218 2 2 0 3 50.13 1.77 1.8196 2 1 6 6 52.13 23.01 1.7544 2 0 8 6 52.82 1.76 1.7332 2 2 3 6 56.95 1.12 1.6168 3 1 4 6 59.62 11.83 1.5508 0 4 2 6 60.54 18.43 1.5293 2 2 6 6 62.37 7.61 1.4888 0 2 10 6 62.89 6.66 1.4778 4 0 4 6 66.44 1.24 1.4072 0 0 12 2 68.52 1.06 1.3695 2 3 4 6 75.19 5.40 1.2637 0 4 8 6 81.51 2.51 1.1809 4 2 2 6 83.94 2.80 1.1528 4 0 10 6 84.40 1.83 1.1477 2 4 4 6 86.36 1.66 1.1266 2 0 14 6 87.62 3.28 1.1136 2 2 12 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.