Pertsevite-(OH)
Galuskina I O, Kadiyski M, Armbruster T, Galuskin E V, Pertsev N N,
Dzierzanowski P, Wrzalik R
European Journal of Mineralogy 20 (2008) 951-964
A new natural phase in the system Mg2SiO4-Mg2BO3F-Mg2BO3(OH): composition,
paragenesis and structure of OH-dominant pertsevite
Locality: East Vekhoyan'ye region, northern Siberia
_database_code_amcsd 0007266
20.494 11.890 4.5880 90 90 90 Pnma
atom       x       y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mg1   .37724   .2500  .0193      .0130  .0113  .0110  .0168   .000  .0012   .000
Mg2   .37760 -.02284  .0173      .0128  .0167  .0107  .0110 -.0012 -.0019  .0010
Mg3   .24737  .11148  .0326      .0129  .0100  .0126  .0160 -.0013 -.0005 -.0008
Mg4  -.01370  .12252 -.0079      .0145  .0122  .0140  .0173 -.0005 -.0002 -.0021
Mg5   .11879   .2500  .0133      .0154  .0136  .0155  .0171   .000 -.0017   .000
B1     .3446   .0856 -.4362 .856 .0102
B2     .0243   .2202   .456 .271 .0102
B2A    .4766   -.034  -.076 .144 .0102
B3     .1851   .2500  -.433  .57 .0102
Si1    .3325   .1243 -.3968 .113 .0102
Si2    .0350   .2500  .4291 .398 .0102
Si3    .2104   .2500 -.3917 .404 .0102
O1    .20521   .2500  .2686      .0167  .0200  .0145  .0155   .000 -.0026   .000
O2    .33513  .11208  .2687      .0151  .0146  .0185  .0121 -.0020  .0003  .0002
O3    .03173   .2500 -.2384      .0147  .0135  .0144  .0164   .000  .0017   .000
O4    .32872 -.14794  .2301      .0158  .0157  .0172  .0144  .0007  .0000  .0025
O5    .40017  .11717 -.2806      .0146  .0139  .0165  .0135 -.0002  .0014  .0000
O6    .46568   .2500  .2054      .0150  .0148  .0143  .0159   .000 -.0037   .000
O7    .46278 -.00783  .2486      .0108  .0095  .0087  .0141  .0019 -.0040 -.0006
O8     .4216  -.1257  -.271 .271 .0099
O8A    .4302   -.109  -.233  .14 .0099
O8B    .4312  -.1486 -.2066 .602 .0099
O9    .30137  .01635 -.2816      .0139  .0149  .0138  .0130 -.0021 -.0015 -.0010
O10   .28769   .2500 -.1984      .0254   .030  .0202   .026   .000  .0048   .000