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-TF7
      Locality:Middle Atlas Neogene-Quaternary Volcanic Field of Morocco
      _database_code_amcsd 0020066

      CELL PARAMETERS:    8.1351   8.1351   8.1351   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    538.380
      Density (g/cm3):      3.842
      MAX. ABS. INTENSITY / VOLUME**2:      26.84124659    
      RIR:      2.275
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.89         18.34        4.6968    1   1   1         8
                31.09         37.68        2.8762    2   2   0        12
                36.64        100.00        2.4528    3   1   1        24
                44.55         38.43        2.0338    4   0   0         6
                55.32         10.72        1.6606    4   2   2        24
                59.00          3.53        1.5656    3   3   3         8
                59.00         39.96        1.5656    5   1   1        24
                64.83         61.19        1.4381    4   4   0        12
                68.20          1.81        1.3751    5   3   1        48
                73.65          3.39        1.2863    6   2   0        24
                76.84          9.91        1.2406    5   3   3        24
                77.89          1.46        1.2264    6   2   2        24
                82.07          4.65        1.1742    4   4   4         8
                85.18          1.86        1.1391    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.