Moore P B
American Mineralogist 57 (1972) 24-35
Sarcopside: Its atomic arrangement
10.437 4.768 6.026 90 90.00 90 P2_1/a
atom x y z occ Biso
Fe1 0 0 0 .78 .58
Mn1 0 0 0 .21 .58
Mg1 0 0 0 .01 .58
Fe2 .2830 -.0134 .2639 .78 .57
Mn2 .2830 -.0134 .2639 .21 .57
Mg2 .2830 -.0134 .2639 .01 .57
P .1000 .4341 .2386 .53
O1 -.1042 .2510 -.2159 .71
O2 -.0358 .3147 .2463 .76
O3 .1620 .2838 .0291 .78
O4 .1822 .3241 .4296 .69
Ericsson T, Nord A G
American Mineralogist 69 (1984) 889-895
Strong cation ordering in olivine-related (Ni,Fe)-sarcopsides: a combined
Mossbauer, X-ray and neutron diffraction study
neutron diffraction
10.363 4.732 5.990 90 90.91 90 P2_1/a
Ni1 0 0 .5 .83 .2
Fe1 0 0 .5 .17 .2
Fe2 .282 -.023 .237 .97 .2
Ni2 .282 -.023 .237 .03 .2
P .093 .414 .266 .5
O1 .107 .746 .276 .1
O2 .460 .188 .253 .1
O3 .179 .313 .064 .1
O4 .158 .276 .468 .1
Nord A G, Stefanidis T
Physics and Chemistry of Minerals 10 (1983) 10-15
Crystallographic studies of some olivine-related (Ni,Mg)3(PO4)2
solid solutions
Sample: Ni3(PO4)2
10.108 4.698 5.831 90 91.12 90 P2_1/a
atom x y z Biso
NiM1 0 0 .5 -.3
NiM2 .273 -.013 .241 -.3
P .094 .423 .256 -1.4
O1 .104 .732 .270 -2.5
O2 .455 .204 .252 -2.5
O3 .173 .305 .050 -2.5
O4 .161 .265 .469 -2.5
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