Nyerereite
McKie D, Frankis E J
Zeitschrift fur Kristallographie 145 (1977) 73-95
Nyerereite: A new volcanic carbonate mineral from Oldoinyo Lengai, Tanzania
Note: high-temperature polymorph with an structure that has been inferred
Locality: Oldoinyo Lengai, Tanzania
_database_code_amcsd 0010791
5.05 5.05 12.85 90 90 120 P6_3mc
atom   x   y    z occ
Ca     0   0    0
Na   1/3 2/3 .825 .64
K    1/3 2/3 .825 .36
Na   1/3 2/3 .125
C    1/3 2/3   .5
C      0   0  .25
O    .48 .52   .5
O    .15 .85  .25