Siderophyllite
Redhammer G J, Roth G
American Mineralogist 87 (2002) 1464-1476
Single-crystal structure refinements and crystal chemistry of
synthetic trioctahedral micas KM3(Al,Si)4O10(OH)2, where
M = Ni, Mg, Co, Fe, Al
Sample: Sd87#4
_database_code_amcsd 0002927
5.3649 9.2892 10.2698 90 100.242 90 C2/m
atom      x      y      z occ Biso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
AlT  .57595 .16683 .22658 .43  .58 0.0072 0.0069 0.0078 -0.0004 0.0011 -0.0004
SiT  .57595 .16683 .22658 .57  .58 0.0072 0.0069 0.0078 -0.0004 0.0011 -0.0004
FeM1      0     .5     .5 .80  .50 0.0055 0.0046 0.0093       0 0.0019       0
AlM1      0     .5     .5 .20  .50 0.0055 0.0046 0.0093       0 0.0019       0
FeM2      0 .83139     .5 .79  .49 0.0046 0.0049 0.0091       0 0.0011       0
AlM2      0 .83139     .5 .31  .49 0.0046 0.0049 0.0091       0 0.0011       0
K         0      0      0     2.14 0.0305 0.0298 0.0204       0 0.0028       0
O1   .83672 .22050 .17265     1.52 0.0175 0.0223 0.0184 -0.0018 0.0044 -0.0049
O2   .49960      0 .17334     1.51 0.0234 0.0146 0.0176       0 -.0012       0
O3   .63333 .16776 .39449     1.17 0.0175 0.0170 0.0095  0.0003 0.0012  0.0004
O4   .12691      0 .39857     1.39 0.0170 0.0256 0.0099       0 0.0010       0
H      .100      0   .301     2.35