Trikalsilite
Bonaccorsi E, Merlino S, Pasero M
Neues Jahrbuch fur Mineralogie, Monatshefte 1988 (1988) 559-567
Trikalsilite: its structural relationships with nepheline and tetraskalsilite
Locality: Near Mt. Nyiragongo, Virunga volcanic field, North Kivu, Zaire
_database_code_amcsd 0014833
15.339 15.339 8.501 90 90 120 P6_3
atom     x     y     z occ Biso
NaM2 .3689 .0133   .75  .7  1.9
KM2  .3689 .0133   .75  .3  1.9
KM1      0     0 .7553      1.4
KM3  .2922 .3195 .7474  .7  1.5
NaM3 .2922 .3195 .7474  .3  1.5
KM4    1/3   2/3 .7371      2.6
KM5    2/3   1/3 .7601       .9
Al1  .4453 .2351 .5537       .5
Al2  .0544 .2147 .5638      1.0
Al3  .4147 .5354 .5614       .7
Si1  .1947 .4374 .4373       .5
Si2  .2196 .1593 .4361      1.1
Si3  .5663 .4572 .4425       .7
O1    .183  .432  .253      5.3
O2    .201  .184  .255      1.7
O3    .560  .453  .250      7.5
O4    .197  .542  .472      1.7
O5    .546  .348  .494      1.1
O6    .108  .343  .516      1.7
O7    .335  .227  .479      2.6
O8    .154  .190  .556       .7
O9    .173  .037  .445      1.2
O10   .305  .448  .458      1.3
O11   .458  .140  .479      1.3
O12   .493  .487  .527      3.3