Herderite
Pavlov P V, Belov N V
Soviet Physics Crystallography 4 (1959) 300-314
The structures of herderite, datolite and gadolinite determined by direct
methods
Locality: not given, but the crystal was natural
_database_code_amcsd 0015537
9.80 7.68 4.80 90 90.1 90 P2_1/a
atom    x    y    z
Ca   .330 .113 .995
Be   .333 .408 .558
P    .079 .269 .475
O1   .041 .397 .250
O2   .456 .278 .650
O3   .195 .343 .673
O4   .141 .111 .333
F    .330 .417 .209