Brunogeierite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R090012 Welch M D, Cooper M A, Hawthorne F C Mineralogical Magazine 65 (2001) 441-444 The crystal structure of brunogeierite, Fe2GeO4 spinel Locality: Tsumeb, Namibia CELL PARAMETERS: 8.4140 8.4140 8.4140 90.000 90.000 90.000 ALTERNATE SETTING FOR SPACE GROUP: Fd3m ATOM X Y Z OCCUPANCY ISO(B) Ge 0.12500 0.12500 0.12500 1.000 0.363 Fe 0.50000 0.50000 0.50000 1.000 0.482 O 0.24660 0.24660 0.24660 1.000 0.490 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 7 +/- 7 +/- 7 MAX. ABS. INTENSITY / VOLUME**2: 117.6435965 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 30.04 34.94 2.9748 2 2 0 35.38 100.00 2.5369 3 1 1 37.01 6.30 2.4289 2 2 2 43.00 11.71 2.1035 4 0 0 53.34 13.09 1.7175 4 2 2 56.86 20.93 1.6193 5 1 1 56.86 8.25 1.6193 3 3 3 62.44 39.16 1.4874 4 4 0 70.83 5.22 1.3304 6 2 0 73.86 9.42 1.2831 5 3 3 74.86 2.91 1.2685 6 2 2 78.81 1.32 1.2145 4 4 4 86.57 5.92 1.1244 6 4 2 89.46 11.61 1.0954 7 3 1 89.46 5.05 1.0954 5 5 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.