Franciscanite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R060056 Pertlik F Neues Jahrbuch fur Mineralogie, Monatshefte 1986 (1986) 493-499 The crystal structure of franciscanite, Mn3(Vx_1-x)(SiO4)(O,OH)3,(x ~ 0.5) Locality: Franciscan Complex, Pennsylvania mine, Santa Clara County, California, USA CELL PARAMETERS: 8.1350 8.1350 4.7930 90.000 90.000 120.000 SPACE GROUP: P3 ATOM X Y Z OCCUPANCY ISO(B) Mn 0.58480 0.89160 0.00000 1.000 0.956 Mn 0.40900 0.11510 0.49940 1.000 0.974 V 0.00000 0.00000 0.96090 0.640 0.886 V 0.00000 0.00000 0.43240 0.360 1.886 Si 0.33333 0.66667 0.43420 1.000 0.991 Si 0.66667 0.33333 0.93980 1.000 0.579 O 0.36660 0.86770 0.29450 1.000 1.123 O 0.62770 0.13170 0.79730 1.000 1.009 O 0.33333 0.66667 0.78440 1.000 1.579 O 0.66667 0.33333 0.26700 1.000 0.465 OH 0.78890 0.83580 0.78140 1.000 1.623 OH 0.21350 0.16300 0.26470 1.000 0.956 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 0.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 6 +/- 6 +/- 4 MAX. ABS. INTENSITY / VOLUME**2: 23.89454056 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 12.56 2.93 7.0451 1 0 0 21.85 7.19 4.0675 1 1 0 22.44 14.87 3.9629 0 1 1 22.44 10.59 3.9629 1 0 1 28.79 50.00 3.1013 2 -1 1 28.79 50.00 3.1013 1 1 1 31.52 36.05 2.8384 0 2 1 31.52 36.10 2.8384 2 0 1 33.66 6.02 2.6628 1 2 0 33.66 39.81 2.6628 2 1 0 37.53 13.35 2.3965 0 0 2 38.33 7.18 2.3484 3 0 0 38.68 11.80 2.3277 -1 3 1 38.68 20.23 2.3277 1 2 1 38.68 20.04 2.3277 3 -1 1 38.68 14.22 2.3277 2 1 1 42.88 2.76 2.1089 0 3 1 42.88 3.03 2.1089 3 0 1 43.85 2.82 2.0648 2 -1 2 43.85 3.07 2.0648 1 1 2 46.47 2.02 1.9540 1 3 0 48.63 1.25 1.8722 4 -2 1 48.63 1.20 1.8722 2 2 1 50.44 2.50 1.8094 -1 4 1 50.44 5.37 1.8094 1 3 1 50.44 5.35 1.8094 4 -1 1 50.44 2.05 1.8094 3 1 1 51.29 1.53 1.7813 3 -1 2 51.29 1.40 1.7813 1 2 2 51.29 37.41 1.7813 2 1 2 51.29 33.68 1.7813 -1 3 2 51.91 4.58 1.7613 4 0 0 54.72 4.34 1.6773 0 3 2 54.72 3.84 1.6773 3 0 2 55.59 5.82 1.6532 0 4 1 55.59 5.70 1.6532 4 0 1 56.98 3.42 1.6163 3 2 0 56.98 1.92 1.6163 2 3 0 59.31 2.30 1.5581 0 1 3 59.31 1.61 1.5581 1 0 3 60.19 31.90 1.5374 1 4 0 60.19 1.24 1.5374 4 1 0 60.45 8.78 1.5315 -2 5 1 60.45 9.18 1.5315 3 2 1 62.45 3.09 1.4871 2 -1 3 62.45 3.76 1.4871 1 1 3 63.55 1.71 1.4639 -1 5 1 63.55 1.61 1.4639 4 1 1 63.99 2.48 1.4550 0 2 3 63.99 2.88 1.4550 2 0 3 68.49 3.15 1.3700 -1 3 3 68.49 2.60 1.3700 3 -1 3 68.49 2.60 1.3700 1 2 3 68.49 2.18 1.3700 2 1 3 70.76 1.22 1.3314 2 4 0 70.76 2.47 1.3314 4 2 0 72.44 1.83 1.3046 6 -3 1 72.44 1.83 1.3046 3 3 1 73.13 3.54 1.2940 5 -1 2 73.13 3.59 1.2940 1 4 2 75.07 1.16 1.2653 5 1 0 77.11 1.67 1.2368 4 -1 3 77.11 1.12 1.2368 1 3 3 80.09 2.78 1.1983 0 0 4 81.31 1.51 1.1833 4 0 3 81.31 1.82 1.1833 0 4 3 82.96 3.71 1.1639 -2 6 2 82.96 3.45 1.1639 4 2 2 85.06 1.62 1.1405 0 6 1 85.06 1.55 1.1405 6 0 1 85.45 3.25 1.1362 3 2 3 85.45 3.35 1.1362 -2 5 3 89.74 2.13 1.0927 2 1 4 89.74 2.42 1.0927 -1 3 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.