Clinotobermorite
Hoffmann C, Armbruster T
Zeitschrift fur Kristallographie 212 (1997) 863-873
Clinotobermorite, Ca5(Si3O8(OH))2*4(H2O) - Ca5(Si6O17)*5(H2O),
a natural C-S-H(I) type cement mineral: determination of the substructure
Locality: Wessels mine, Kalahari manganese field, South Africa
_cod_database_code 1000046
_database_code_amcsd 0011075
5.593 3.645 22.45599 90 96.97 90 I2/m
atom     x     y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca1  .5282     0 .29487      .0173  .0125  .0283      0 .00799      0
Ca2  .3385     0  .4632 .25  .0234   .057  .0213      0  .0034      0
Si1  .4453 .0798 .15732  .5  .0124  .0120  .0151 -.0016  .0009  .0000
Si2  .5628    .5 .07108  .5  .0181  .0152  .0138      0  .0024      0
O2   .2304     0  .1953      .0152  .0167  .0217      0  .0046      0
O3   .6957     0 .19738      .0142  .0194  .0193      0  .0003      0
O4   .4156    .5  .1313  .5  .0255  .0133  .0184      0 -.0001      0
O5      .5    .5      0       .052   .040  .0213      0 -.0008      0
O6    .841    .5  .0925  .5  .0189   .033   .025      0  .0034      0
O7    .921    .5  .0950  .5   .042   .140   .040      0  -.003      0
O8    .495    .5  .4805  .5   .030   .068   .091      0  -.017      0