Mariinskite
Yamnova N A, Aksenov S M, Pautov L A, Popov M P, Erokhin Y V
Crystallography Reports 59 (2014) 30-35
Specific features of cation distribution in the crystal structure
of mariinskite BeCr2O4 (derivative of olivine-type structure)
Note: Sample 1
Locality: Mariinskoe deposit (Middle Urals, Russia)
_database_code_amcsd 0020027
4.487 5.629 9.732 90 90 90 *P2_12_12_1
.25 .25 0
atom    x    y    z occ Uiso
AlM1 .255 .509 .499 .49 .007
CrM1 .255 .509 .499 .28 .007
CrM2 .250 .740 .242 .67 .011
AlM2 .250 .740 .242 .15 .011
CrM3 .746 .492 .501 .31 .021
CrM4 .243 .233 .248 .16 .029
Be1  .833 .738 .409 .65 .031
Be2  .150 .749 .405 .25  .02
O1   .488 .756 .419     .025
O2   .005 .754 .073     .017
O3   .500 .491 .167     .017
O4   .506 .498 .658     .007