Sarcolite
Giuseppetti G, Mazzi F, Tadini C
Tschermaks Mineralogische und Petrographische Mitteilungen 24 (1977) 1-21
The crystal structure of sarcolite
Locality: Vesuvius volcano, Bay of Naples, Italy
_database_code_amcsd 0015662
12.343 12.343 15.463 90 90 90 I4/m
atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Na1 0 0 .2821 1.30 -.0009 -.0009 .0041 0 0 0
Na2 0 .5 .25 .76 8.44 .0014 .0014 .0248 0 0 0
Ca1 .2696 .4008 0 1.06 .0019 .0021 .0007 .0000 0 0
Ca2 .0763 .2084 .1349 .96 .0017 .0013 .0011 .0000 -.0003 .0000
Al .3755 .1879 .1423 1.12 .0006 .0011 .0024 .0001 .0001 -.0010
Si1 .3710 .0102 0 .58 .0012 .0010 .0004 .0004 0 0
Si2 .2446 .3901 .2017 .56 .0010 .0007 .0007 .0000 .0001 -.0001
O1 0 .5 0 4.08 .0119 .0015 .0043 -.0031 0 0
O2 .1040 .3081 0 1.79 .0010 .0058 .0013 .0002 0 0
O3 .3353 .0715 .0873 1.14 .0024 .0020 .0008 -.0005 .0005 -.0005
O4 .2222 .4885 .1341 1.29 .0033 .0009 .0014 .0007 .0001 .0000
O5 .2782 .2913 .1361 1.18 .0023 .0012 .0015 .0004 -.0002 -.0003
O6 .1651 .0800 .2270 .96 .0013 .0014 .0013 .0000 -.0001 -.0001
O7 .1303 .3509 .2444 1.16 .0015 .0019 .0015 -.0005 .0000 .0000
O8 .3946 .2508 0 .72 2.78 .0013 .0028 .0060 .0007 0 0
O9 .038 .118 0 .125 1.5
O10 .100 -.074 0 .125 1.5
O11 -.069 -.022 .080 .125 1.5
O12 .093 .045 .058 .25 1.5
O13 .5 .555 .071 .115 1.5
O14 .539 .539 .071 .115 1.5
O15 .462 .405 0 .23 1.5
Si3 0 0 0 .5 .56 .0010 .0010 .0005 0 0 0
P3 0 0 0 .5 .56 .0010 .0010 .0005 0 0 0
C .513 .495 0 .23 1.5
Cl .5 .5 0 .08 1.5
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