Berborite
Giuseppetti G, Mazzi F, Tadini C, Larsen A O, Asheim A, Raade G
Neues Jahrbuch fur Mineralogie, Abhandlungen 162 (1990) 101-116
Berborite polytypes
Locality: Saga I larvikite quarry, Morje, Porgrunn, Tvelan District, Norway
Sample: 2H polytype
Note: anisoU's from ICSD
_database_code_amcsd 0014717
4.433 4.433 10.638 90 90 120 *P6_3
-.33333333 .33333333 0
atom     x      y     z occ Biso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
BeA    2/3    1/3 .3036      .82 .00642 .00642  .0184 .00321       0       0
BeB    1/3    2/3 .2009      .70 .00801 .00801  .0107 .00401       0       0
B        0      0   .25      .61 .00547 .00547 .01213 .00274       0       0
O1   .3089 -.0002   .25      .76 .00528 .00509 .01832 .00258 -.00083 -.00153
O2A    2/3    1/3 .4549     1.32 .01865 .01865 .01276 .00932       0       0
O2B    1/3    2/3 .0450     1.52 .02310 .02310 .01139 .01155       0       0
HA   -.401   .446  .496 1/3  3.0
HB    .439  -.445  .508 2/3  5.0