Brearleyite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R130063
      Ma C, Connolly H C, Beckett J R, Tschauner O, Rossman G R, Kampf A R, Zega T J,
      Sweeney Smith S A, Schrader D L
      American Mineralogist 96 (2011) 1199-1206
      Brearleyite, Ca12Al14O32Cl2, a new alteration mineral from the NWA 1934 meteorite
      Locality: Northwest Africa 1934 CV3 carbonaceous chondrite
      _database_code_amcsd 0018484

      CELL PARAMETERS:  11.9800 11.9800 11.9800   90.000   90.000   90.000
      SPACE GROUP: I-43d     

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Ca     0.61500   0.00000   0.25000     0.770     1.300
            Ca     0.55500   0.00000   0.25000     0.340     1.300
            Al     0.01300   0.01300   0.01300     1.000     0.600
            Al     0.87500   0.00000   0.25000     1.000     0.600
            O      0.79200   0.09500   0.30000     1.000     1.000
            O      0.17000   0.17000   0.17000     1.000     1.000
            Cl     0.37500   0.00000   0.25000     0.370     1.000

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    5.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/- 10 +/- 10 +/- 10
            MAX. ABS. INTENSITY / VOLUME**2:      15.91172200    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                18.14         57.57        4.8908    2   1   1
                23.48         11.35        3.7884    3   1   0
                27.86         17.92        3.2018    3   2   1
                29.83         42.42        2.9950    4   0   0
                33.45        100.00        2.6788    4   2   0
                35.14          9.92        2.5541    3   3   2
                36.75         41.07        2.4454    4   2   2
                38.31          9.14        2.3495    5   1   0
                38.31          1.82        2.3495    4   3   1
                41.28         19.51        2.1872    5   2   1
                44.08          3.37        2.0546    5   3   0
                46.74         20.99        1.9434    5   3   2
                46.74          1.75        1.9434    6   1   1
                49.30          1.42        1.8486    5   4   1
                51.75          3.75        1.7664    6   3   1
                52.95          7.37        1.7292    4   4   4
                54.13          1.31        1.6942    5   4   3
                54.13          3.67        1.6942    7   1   0
                55.30         22.16        1.6613    6   4   0
                56.44          2.46        1.6303    6   3   3
                56.44          2.99        1.6303    5   5   2
                57.57         34.46        1.6009    6   4   2
                60.89          3.38        1.5215    7   3   2
                61.97          6.34        1.4975    8   0   0
                63.04          3.95        1.4746    7   4   1
                65.15          1.19        1.4319    6   5   3
                67.22          4.48        1.3926    7   4   3
                67.22          2.81        1.3926    7   5   0
                69.27          1.45        1.3565    7   5   2
                70.28          7.63        1.3394    8   4   0
                72.28          7.61        1.3071    8   4   2
                73.28          1.23        1.2918    9   2   1
                74.27          3.97        1.2771    6   6   4
                75.25          1.22        1.2628    7   5   4
                79.14          1.36        1.2102    9   4   1
                79.14          1.52        1.2102    8   5   3
                87.75          3.93        1.1123   10   4   0
                87.75          3.85        1.1123    8   6   4
                88.70          1.45        1.1028   10   3   3
                89.65          5.43        1.0936   10   4   2
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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.