Donpeacorite
Stimpfl M
American Mineralogist 90 (2005) 155-161
The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6)
and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene
Sample: untreated
_database_code_amcsd 0003667
18.3668 8.8725 5.2289 90 90 90 Pbca
atom      x      y      z   occ  Biso
Mg1  .37530 .65408 .87230 .9882 .5218
Mn1  .37530 .65408 .87230 .0103 .5218
Ti1  .37530 .65408 .87230 .0015 .5218
Mg2  .37762 .47989 .36852 .4443 .7519
Mn2  .37762 .47989 .36852 .5312 .7519
Ca2  .37762 .47989 .36852 .0245 .7519
SiA  .27102 .34120 .04763       .4224
SiB  .47494 .33794 .79557 .9969 .4331
AlB  .47494 .33794 .79557 .0031 .4331
O1A  .18322 .33835 .04092       .4471
O2A  .30974 .50196 .04548       .6249
O3A  .30222 .22933 .82166       .7016
O1B  .56305 .33850 .79752       .5493
O2B  .43529 .48760 .70173       .7595
O3B  .44758 .20399 .59139       .7016