Groatite
Cooper M A, Hawthorne F C, Ball N A, Ramik R A, Roberts A C
The Canadian Mineralogist 47 (2009) 1225-1235
Groatite, NaCaMn2(PO4)[PO3(OH)]2, a new mineral species of the alluaudite group
from the Tanco Pegmatite, Bernic Lake, Manitoba, Canada: Description and
crystal structure
Locality: Tanco Pegmatite, Bernic Lake, Manitoba, Canada
_database_code_amcsd 0006298
12.5435 12.4324 6.7121 90 115.332 90 C2/c
atom      x      y      z   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
NaA2      0 -.0439    .25  .0284  .0196  .0455  .0152      0  .0029      0
CaM1      0 .28883    .25  .0119  .0116  .0098  .0155      0  .0070      0
MnM2 .28243 .66313 .36073 .01008  .0111  .0080  .0112  .0001  .0049  .0002
PT1       0 .68999    .25  .0085  .0090  .0078  .0081      0  .0031      0
PT2  .21416 .89604 .11515  .0089  .0104  .0070  .0091  .0000  .0041  .0000
O1    .4548  .7384  .5439  .0119  .0117  .0132  .0094  .0002  .0032 -.0019
O2    .0980  .6176  .2399  .0136  .0111  .0094  .0198  .0006  .0062 -.0009
O3    .3403  .6683  .0986  .0129  .0161  .0117  .0114 -.0018  .0064 -.0003
Oh4   .1528  .4220  .3401  .0144  .0121  .0085  .0226  .0023  .0074  .0011
O5    .2178  .8289  .3081  .0115  .0105  .0115  .0110  .0010  .0032  .0005
O6    .3501  .5020  .4042  .0127  .0120  .0093  .0163 -.0006  .0057  .0020
H      .128  .4970   .305    .07