Artioli G, Geiger C A
Physics and Chemistry of Minerals 20 (1994) 443-453
The crystal chemistry of pumpellyite: An X-ray Rietveld
refinement and 57Fe Mossbauer study
Note: sample K1
Locality: Keweenawan, Michigan
8.8192 5.9192 19.1274 90 97.446 90 A2/m
atom x y z occ Uiso
Si1 .0508 0 .0909 .008
Si2 .1672 0 .2489 .008
Si3 .4645 0 .4014 .008
AlX .5 .25 .25 .50 .023
FeX .5 .25 .25 .13 .023
MgX .5 .25 .25 .373 .023
AlY .2541 .242 .4976 .886 .023
FeY .2541 .242 .4976 .114 .023
Ca1 .2474 .5 .3388 .015
Ca2 .1878 .5 .1554 .014
O1 .1335 .224 .0721 .0104
O2 .2679 .225 .2417 .0104
O3 .3736 .220 .4168 .0104
O4 .136 .5 .4453 .0104
OH5 .128 0 .4568 .0104
O6 .368 .5 .0458 .0104
OH7 .370 0 .0368 .0104
O8 .035 0 .1730 .0104
O9 .485 .5 .1772 .0104
OH10 .070 0 .3135 .0104
OH11 .501 .5 .3122 .0104
Galli E, Alberti A
Acta Crystallographica B25 (1969) 2276-2281
On the crystal structure of pumpellyite
8.83 5.9 19.17 90 97.12 90 A2/m
atom x y z occ Biso
Al .5 .25 .25 .50 .57
Mg .5 .25 .25 .35 .57
Fe .5 .25 .25 .15 .57
Ca1 .2502 .5 .3395 .95 .35
Mg1 .2502 .5 .3395 .05 .35
Ca2 .1895 .5 .1550 .95 .95
Mg2 .1895 .5 .1550 .05 .95
Si1 .0484 0 .0907 .93 .33
Al1 .0484 0 .0907 .07 .33
Si2 .1674 0 .2482 .93 .38
Al2 .1674 0 .2482 .07 .38
Si3 .4661 0 .4021 .93 .11
Al3 .4661 0 .4021 .07 .11
Al .2541 .2454 .4964 .08
O1 .1360 .2218 .0685 .56
O2 .2674 .2318 .2444 .86
O3 .3684 .222 .4209 .58
O4 .1304 .5 .4448 .27
OH5 .1283 0 .4558 .38
O6 .3695 .5 .0445 .37
OH7 .3665 0 .0338 .07
O8 .0376 0 .1779 .31
O9 .4746 .5 .1764 .40
O10 .0667 0 .3152 .40
OH11 .4992 .5 .3129 .24
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