Phlogopite Laurora A, Brigatti M F, Mottana A, Malferrari D, Caprilli E American Mineralogist 92 (2007) 468-480 Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy) Locality: Mt. Sassetto, Tolfa district, Latium, Italy Sample: MS14(2) Note: 2M_1 polytype _database_code_amcsd 0004306 CELL PARAMETERS: 5.3449 9.2375 20.0950 90.000 95.143 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 988.166 Density (g/cm3): 3.065 MAX. ABS. INTENSITY / VOLUME**2: 17.40377519 RIR: 1.849 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 8.84 100.00 10.0070 0 0 2 2 19.22 1.06 4.6188 0 2 0 2 19.24 6.96 4.6123 1 1 0 4 19.41 2.10 4.5729 -1 1 1 4 19.73 3.61 4.5005 0 2 1 4 21.84 1.45 4.0704 1 1 2 4 22.57 1.62 3.9397 -1 1 3 4 23.43 9.04 3.7975 0 2 3 4 24.30 4.47 3.6631 1 1 3 4 25.22 17.01 3.5307 -1 1 4 4 26.26 6.25 3.3938 0 2 4 4 26.73 32.52 3.3357 0 0 6 2 27.30 18.67 3.2672 1 1 4 4 28.36 5.65 3.1465 -1 1 5 4 29.53 14.15 3.0249 0 2 5 4 30.69 3.67 2.9132 1 1 5 4 31.86 7.69 2.8085 -1 1 6 4 33.13 1.71 2.7042 0 2 6 4 33.67 1.00 2.6617 2 0 0 2 33.72 1.94 2.6577 -1 3 1 4 34.07 18.05 2.6315 -2 0 2 2 34.13 36.07 2.6267 1 3 1 4 34.38 3.17 2.6084 1 1 6 4 35.90 4.40 2.5018 0 0 8 2 36.80 12.25 2.4424 -2 0 4 2 36.87 24.61 2.4378 1 3 3 4 36.98 1.10 2.4311 0 2 7 4 38.96 1.71 2.3115 -2 2 1 4 39.27 1.99 2.2942 0 4 1 4 39.69 2.49 2.2710 2 2 1 4 39.76 2.77 2.2671 2 0 4 2 39.78 5.61 2.2660 -1 3 5 4 40.38 2.42 2.2338 -2 2 3 4 41.37 1.57 2.1823 0 4 3 4 41.46 8.59 2.1779 -2 0 6 2 41.54 17.04 2.1740 1 3 5 4 45.31 3.06 2.0014 0 0 10 2 45.46 4.08 1.9951 2 0 6 2 45.47 8.26 1.9948 -1 3 7 4 47.60 1.87 1.9104 -2 0 8 2 47.68 3.70 1.9074 1 3 7 4 54.22 1.30 1.6918 3 1 2 4 54.87 7.29 1.6733 -2 0 10 2 54.95 14.70 1.6710 1 3 9 4 55.06 1.20 1.6678 0 0 12 2 55.23 1.74 1.6633 -1 5 4 4 56.28 1.58 1.6347 -2 4 5 4 56.33 1.23 1.6331 1 5 4 4 57.47 1.39 1.6036 -3 1 6 4 57.51 1.24 1.6024 3 1 4 4 59.99 14.59 1.5421 -3 3 1 4 60.10 7.28 1.5396 0 6 0 2 60.29 8.11 1.5352 -1 3 11 4 60.30 4.03 1.5349 2 0 10 2 60.76 2.59 1.5243 -3 3 3 4 60.78 2.57 1.5239 3 3 1 4 60.88 2.58 1.5217 0 6 2 4 63.15 1.66 1.4723 1 3 11 4 65.27 1.22 1.4296 0 0 14 2 69.07 7.20 1.3598 -1 3 13 4 69.09 3.57 1.3595 2 0 12 2 70.69 1.25 1.3327 2 6 0 4 70.80 2.47 1.3308 4 0 0 2 70.92 4.90 1.3289 -2 6 2 4 71.89 2.29 1.3132 -3 3 9 4 71.96 2.28 1.3122 3 3 7 4 72.02 2.26 1.3112 0 6 8 4 72.48 1.69 1.3040 4 0 2 2 72.59 3.41 1.3024 -2 6 4 4 74.00 1.03 1.2810 0 4 13 4 74.33 1.10 1.2761 -4 0 6 2 74.50 2.21 1.2737 2 6 4 4 76.09 1.00 1.2509 0 0 16 2 80.05 1.07 1.1988 -2 6 8 4 85.70 1.80 1.1336 4 0 8 2 85.76 3.62 1.1330 -2 6 10 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.