Naujakasite
Basso R, dal Negro A, Giusta A D, Ungaretti L
Gronlands Geologiske Undersogelse: Bulletin 116 (1975) 11-24
The crystal structure of naujakasite, a double sheet silicate
Locality: Tuperssuatsiait Bay, Illimaussaq complex, Narsaq, Greenland
_database_code_amcsd 0012670
15.025 7.991 10.468 90 113.67 90 C2/m
atom     x     y     z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Na1  .2299    .5 .4403     1.60  .0016  .0059  .0050      0  .0008      0
Na2  .3430    .5 .1126     1.85  .0030  .0049  .0075      0  .0034      0
Na3  .4643     0 .1650     1.88  .0020  .0104  .0032      0  .0004      0
Fe       0     0     0     1.01  .0008  .0011  .0059      0  .0012      0
AlT2 .0584 .1953 .3415  .5  .81  .0008  .0028  .0030 -.0001  .0007 -.0008
SiT2 .0584 .1953 .3415  .5  .81  .0008  .0028  .0030 -.0001  .0007 -.0008
AlT3 .1463 .3014 .6507  .5  .73  .0007  .0022  .0028 -.0002  .0005 -.0003
SiT3 .1463 .3014 .6507  .5  .73  .0007  .0022  .0028 -.0002  .0005 -.0003
SiT1 .1505 .3081 .1315      .65  .0007  .0017  .0026 -.0001  .0005 -.0003
O1   .1010 .1789 .0102     1.64  .0018  .0059  .0061 -.0020  .0019 -.0037
O2   .2681 .2937 .2103     1.22  .0011  .0047  .0037  .0002  .0004  .0012
O3   .1070 .3120 .2509     1.22  .0018  .0036  .0046 -.0003  .0018 -.0001
O4   .1318    .5 .0647     1.09  .0015  .0040  .0025      0  .0004      0
O5   .1393 .1973 .5071     1.72  .0014  .0061  .0065  .0002  .0011 -.0033
O6   .0360     0 .2759     1.82  .0019  .0073  .0044      0  .0001      0
O7   .0445 .2932 .6771     1.26  .0015  .0042  .0045 -.0004  .0012 -.0001
O8   .1769    .5 .6338     1.60  .0015  .0070  .0057      0  .0016      0