Pigeonite
Morimoto N, Guven N
American Mineralogist 55 (1970) 1195-1209
Refinement of the crystal structure of pigeonite
Locality: Isle of Mull, Scotland
_database_code_amcsd 0000209
9.706 8.950 5.246 90 108.59 90 P2_1/c
atom     x     y     z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Mg1  .2508 .6548 .2328 .72  .0017  .0016  .0078  .0001  .0013  .0001
Fe1  .2508 .6548 .2328 .28  .0017  .0016  .0078  .0001  .0013  .0001
Fe2  .2564 .0183 .2308 .76  .0028  .0045  .0114  .0005  .0007  .0005
Ca2  .2564 .0183 .2308 .18  .0028  .0045  .0114  .0005  .0007  .0005
Mg2  .2564 .0183 .2308 .06  .0028  .0045  .0114  .0005  .0007  .0005
SiA  .0427 .3398 .2797      .0017  .0015  .0069 -.0001  .0010 -.0012
SiB  .5504 .8367 .2372      .0014  .0016  .0052 -.0004  .0008  .0006
O1A  .8659 .3404 .1715      .0011  .0023  .0067 -.0004  .0003 -.0013
O2A  .1220 .4970 .3306      .0041  .0013  .0076 -.0002  .0032 -.0008
O3A  .1037 .2633 .5779      .0014  .0030  .0121 -.0006  .0008  .0023
O1B  .3743 .8342 .1344      .0023  .0016  .0056  .0003  .0017 -.0007
O2B  .6290 .9877 .3765      .0022  .0045  .0139 -.0018  .0033 -.0033
O3B  .6053 .7087 .4773      .0010  .0038  .0106 -.0005  .0003  .0024