Pyroxferroite
Burnham C W
Proceedings of the Second Lunar Science Conference 1 (1971) 47-57
The crystal structure of pyroxferroite from Mare Tranquillitatis
Locality: Apollo 11 microgabbro sample 10047, Mare Tranquillitatis, Moon
_database_code_amcsd 0015363
6.6213 7.5506 17.3806 114.267 82.684 94.576 P-1
atom     x     y     z occ Biso
FeM1 .0431 .4591 .3953      .64
FeM2 .1604 .3360 .1887 .92  .60
CaM2 .1604 .3360 .1887 .08  .60
FeM3 .0663 .4341 .8963      .66
FeM4 .1626 .3098 .6945 .96  .73
CaM4 .1626 .3098 .6945 .04  .73
FeM5 .2710 .2218 .9892 .72 1.23
CaM5 .2710 .2218 .9892 .28 1.23
FeM6 .8086 .8308 .5170 .81 1.49
CaM6 .8086 .8308 .5170 .19 1.49
FeM7 .6226 .8638 .7111 .65 1.12
CaM7 .6226 .8638 .7111 .35 1.12
Si1  .2431 .8551 .5661      .45
Si2  .1262 .9578 .7500      .42
Si3  .3251 .7544 .8399      .41
Si4  .7843 .1336 .9673      .44
Si5  .5812 .3419 .8786      .35
Si6  .6820 .2381 .6884      .59
Si7  .4910 .4119 .5887      .53
O-A1 .0563 .7004 .5297      .68
O-A2 .0633 .1960 .2730      .63
O-A3 .1534 .5817 .8123      .62
O-A4 .0338 .7069 .0183      .69
O-A5 .2407 .4938 .1061      .55
O-A6 .1320 .6077 .3051      .72
O-A7 .3481 .4167 .3963      .73
O-A8 .2503 .4417 .5942      .85
O-B1 .1783 .0628 .5724      .98
O-B2 .0744 .1820 .7787      .75
O-B3 .5460 .7060 .7907     1.48
O-B4 .8408 .9100 .9245     1.04
O-B5 .3561 .4066 .9200      .85
O-B6 .7350 .0164 .6307      .93
O-C1 .2878 .8866 .6621      .64
O-C2 .2501 .9367 .8214     1.07
O-C3 .3422 .8445 .9417      .89
O-C4 .6225 .1803 .9148      .86
O-C5 .5880 .2196 .7763      .59
O-C6 .4916 .3146 .6584      .77
O-C7 .5465 .2317 .4960      .79