Crystal Data for:                                             MSC50648
Date of Entry:                                              102-08-02
Reference:              Tschermaks Mineralogische und Petrographische
                        Mitteilungen 18 (1972) p273-286
Authors:                                         Donnay, G, Barton, R
Compound Name:     Sodium manganese calcium lithium alumoborosilicate
                   fluoride hydroxide
Formula:              H8.62Al22.78B9.11Ca.42F1.81Fe.09K.01Li3.74Mn.84
                      Na1.69O91.19Si17.94
Empirical Formula:
Color of Crystal:
Crystal System:                                             Trigonal
Space Group:                                                 R 3 m H
Cell Dimensions (at ? K; ? reflections)
                              a =                            15.838(1)
                              b =                            15.838(1)
                              c =                             7.1032(2)
                          alpha =                            90
                           beta =                            90
                          gamma =                           120

Z (Molecules/cell):                                                   1
Volume:                                                          1543.1
Calculated Density:                                                 3.05(1)
Molecular Weight:                                                2852.24
Linear Absorption Coefficient:                                    ?
Final residuals are:
                      R(F) (observed data)     =                    0.042
                      Rw(F2) (refinement data) =                 ?
Notes: Crystallographic information obtained from CIF file from
       Inorganic Crystal Structure Database.

       ICSD Collection Code:  9252