Spinel
      Lenaz D, Youbi N, Min A D, Boumehdi M A, Abbou M B
      American Mineralogist 99 (2014) 267-275
      Low intra-crystalline closure temperatures of Cr-bearing spinels from the mantle
      xenoliths of the Middle AtlasNeogene-Quaternary Volcanic Field (Morocco):
      Mineralogical evidence of a cooler mantle beneath the West African Craton.
      Note:Sample MAR-TF6
      Locality:Middle Atlas Neogene-Quaternary Volcanic Field of Morocco
      _database_code_amcsd 0020065

      CELL PARAMETERS:    8.1339   8.1339   8.1339   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    538.141
      Density (g/cm3):      3.872
      MAX. ABS. INTENSITY / VOLUME**2:      27.46400442    
      RIR:      2.309
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.90         18.82        4.6961    1   1   1         8
                31.10         37.06        2.8758    2   2   0        12
                36.64        100.00        2.4525    3   1   1        24
                44.56         38.06        2.0335    4   0   0         6
                55.33         10.56        1.6603    4   2   2        24
                59.01          3.56        1.5654    3   3   3         8
                59.01         39.28        1.5654    5   1   1        24
                64.84         60.05        1.4379    4   4   0        12
                68.21          1.79        1.3749    5   3   1        48
                73.66          3.35        1.2861    6   2   0        24
                76.85          9.75        1.2404    5   3   3        24
                77.91          1.50        1.2262    6   2   2        24
                82.09          4.51        1.1740    4   4   4         8
                85.20          1.77        1.1390    5   5   1        24
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.