Ca Na2 O4 Si Barth T, Posnjak E Zeitschrift fur Kristallographie 81 (1932) 370-375 Silicate structures of the cristobalite type: II. The crystal structure of Na2 Ca Si O4 _cod_database_code 1010111 _database_code_amcsd 0017042 CELL PARAMETERS: 7.4800 7.4800 7.4800 90.000 90.000 90.000 SPACE GROUP: P2_13 X-RAY WAVELENGTH: 1.541838 Cell Volume: 418.509 Density (g/cm3): 2.827 MAX. ABS. INTENSITY / VOLUME**2: 29.79246835 RIR: 3.432 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 16.76 5.22 5.2892 1 1 0 12 20.57 35.99 4.3186 1 1 1 4 26.65 3.76 3.3452 2 1 0 12 29.25 1.38 3.0537 2 1 1 12 33.90 100.00 2.6446 2 2 0 12 36.02 6.27 2.4933 2 2 1 12 38.04 1.60 2.3654 3 0 1 12 38.04 2.89 2.3654 3 1 0 12 41.84 4.27 2.1593 2 2 2 4 43.63 1.98 2.0746 3 2 0 12 45.37 1.42 1.9991 3 2 1 12 45.37 2.69 1.9991 3 1 2 12 48.69 15.81 1.8700 4 0 0 6 50.29 1.15 1.8142 4 1 0 12 51.86 1.02 1.7631 4 1 1 12 53.39 2.71 1.7160 3 3 1 12 54.89 1.05 1.6726 4 2 0 12 56.37 1.44 1.6323 4 2 1 12 56.37 1.66 1.6323 4 1 2 12 60.65 33.44 1.5268 4 2 2 12 71.33 9.92 1.3223 4 4 0 12 75.14 1.50 1.2644 5 1 3 12 81.36 7.17 1.1827 6 0 2 12 81.36 4.11 1.1827 6 2 0 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.