Fernandinite Evans H T, Post J E, Ross D R, Nelen J A The Canadian Mineralogist 32 (1994) 339-351 The crystal structure and crystal chemistry of fernandinite and corvusite Minasragu, Peru, with general formula (Ca,Na,K)x(V,Fe,Ti)8O20.4H2O Locality: Minasragu, Peru _database_code_amcsd 0005363 CELL PARAMETERS: 11.6800 3.6537 11.0230 90.000 105.000 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 454.380 Density (g/cm3): 3.080 MAX. ABS. INTENSITY / VOLUME**2: 53.86387824 RIR: 5.694 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 8.30 100.00 10.6474 0 0 1 2 15.76 2.49 5.6229 -2 0 1 2 19.62 9.26 4.5238 2 0 1 2 19.75 5.38 4.4959 -2 0 2 2 25.09 20.46 3.5491 0 0 3 2 25.63 24.30 3.4760 1 1 0 4 27.62 5.19 3.2292 1 1 1 4 29.55 2.46 3.0229 -1 1 2 4 30.62 3.84 2.9199 -4 0 1 2 31.72 2.51 2.8205 4 0 0 2 31.83 7.65 2.8115 -4 0 2 2 33.67 5.44 2.6618 0 0 4 2 33.72 1.07 2.6583 -3 1 1 4 34.22 2.79 2.6206 3 1 0 4 34.65 2.92 2.5887 -1 1 3 4 34.95 3.97 2.5670 4 0 1 2 35.34 7.24 2.5396 -3 1 2 4 36.77 3.20 2.4444 3 1 1 4 41.07 1.27 2.1978 2 0 4 2 42.45 6.36 2.1295 0 0 5 2 46.84 2.05 1.9397 -6 0 1 2 46.89 4.48 1.9374 -6 0 2 2 49.92 8.11 1.8269 0 2 0 2 50.09 1.40 1.8212 -3 1 5 4 50.70 1.60 1.8005 0 2 1 4 51.49 1.04 1.7747 6 0 1 2 52.13 1.57 1.7546 1 1 5 4 53.41 1.56 1.7154 -4 0 6 2 56.26 1.56 1.6350 -6 0 5 2 56.67 3.09 1.6243 0 2 3 4 57.20 1.18 1.6104 -3 1 6 4 60.43 1.73 1.5319 -4 2 2 4 60.79 1.37 1.5236 3 1 5 4 61.11 1.45 1.5165 -7 1 2 4 61.40 2.83 1.5101 -7 1 1 4 61.49 1.17 1.5079 6 0 3 2 61.57 1.38 1.5062 0 2 4 4 62.39 1.10 1.4884 4 2 1 4 67.56 2.02 1.3865 0 2 5 4 70.90 1.79 1.3292 -6 2 2 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.