Enstatite
Hawthorne F C, Ito J
The Canadian Mineralogist 15 (1977) 321-338
Synthesis and crystal-structure refinement of transition-metal
orthopyroxenes I: Orthoenstatite and (Mg, Mn, Co) orthopyroxene
_database_code_amcsd 0005139
18.216 8.813 5.179 90 90 90 Pbca
atom      x      y      z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
SiA  .27171 .34150  .0503 .00037 .00176 .00252 -.00005 -.00002 -.00005
SiB  .47356 .33730  .7982 .00037 .00173 .00261  .00005 -.00004  .00004
MgM1 .37580 .65386  .8660 .00052 .00209 .00264 -.00002 -.00013  .00007
MgM2 .37682  .4870  .3587 .00065 .00255 .00424 -.00007 -.00045  .00032
O1A  .18332  .3399  .0346 .00036 .00256 .00327 -.00001  .00002 -.00008
O2A   .3110  .5024  .0434 .00059 .00210 .00503 -.00030 -.00014  .00020
O3A   .3032  .2226 -.1678 .00053 .00265 .00324  .00005 -.00010 -.00089
O1B   .5624  .3402  .7997 .00042 .00228 .00388 -.00008  .00000  .00010
O2B   .4328  .4832  .6890 .00056 .00224 .00400  .00023 -.00016  .00011
O3B   .4477  .1950  .6040 .00052 .00237 .00313 -.00003  .00017 -.00092