COL  ICSD Collection Code 69606
 DATE Recorded Aug 20, 1992; updated Nov 10, 1997
 NAME Iron oxide hydroxide chloride (8/8/8/1.4)
 MINR Akaganeite - from the Campo del Cielo meteorite
 MINR Cryptomelane group
 FORM Fe8 O8 (O H)8 Cl1.35
      = H8 Cl1.35 Fe8 O16
 FORM (Fe7.6 Ni0.4) O6.35 (O H)9.65 Cl1.25
 TITL Crystal structure refinement of akaganeite
 REF  American Mineralogist
      AMMIA 76 (1991) 272-277
 AUT  Post J E, Buchwald˙V˙F
 CELL a=10.600 b=3.034 c=10.513 à=90.0 á=90.2 ç=90.0
      V=338.1 Z=1
 SGR  I 1 2/m 1     (12) - monoclinic
 CLAS 2/m   (Hermann-Mauguin) - C2h (Schoenflies)
 PRS  mI33
 ANX  A8XY16
 PARM Atom__No OxStat  Wyck ---X--- ---Y--- ---Z---  -SOF-
      Fe     1  3.000    4i  0.858   0.      0.341
      Fe     2  3.000    4i  0.339   0.      0.141
      O      1 -2.000    4i  0.663   0.      0.29
      O      2 -2.000    4i  0.657   0.      0.03
      O      3 -2.000    4i  0.293   0.      0.357
      O      4 -2.000    4i  0.039   0.      0.332
      Cl     1 -1.000    2a  0.      0.      0.        0.675(35)
      H      1  1.000    8j  8 Atoms not located in Unit Cell
 WYCK i6 a
 ITF  Fe  1   B=0.5
 ITF  Fe  2   B=0.5
 ITF  O   1   B=0.8
 ITF  O   2   B=0.8
 ITF  O   3   B=0.8
 ITF  O   4   B=0.8
 ITF  Cl  1   B=2.
 REM  XDP (X-ray diffraction from a powder)
 REM  RVP
 REM  M PDF 42-1315
 RVAL 0.062
 TEST Deviation of the charge sum from zero tolerable. (Code 22)