Graeserite
Biagioni C, Bonaccorsi E, Perchiazzi N, Halenius U, Zaccarini F
Mineralogical Magazine 84 (2020) 766-777
Derbylite and graeserite from the Monte Arsiccio mine, Apuan Alps, Tuscany, Italy:
occurrence and crystal-chemistry
Note: Sample G
Locality: Monte Arsiccio mine, Apuan Alps, Italy
_database_code_amcsd 0020900
5.0275 14.2668 7.1663 90 105.123 90 C2/m
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
TiM1 0 .5 .5 .83 .01097 .0088 .0087 .0138 .000 .00018 .000
FeM1 0 .5 .5 .17 .01097 .0088 .0087 .0138 .000 .00018 .000
TiM2 -.5 .61941 .5 .584 .00841 .00804 .00897 .00818 .000 .00201 .000
FeM2 -.5 .61941 .5 .416 .00841 .00804 .00897 .00818 .000 .00201 .000
TiM3 -.37935 .80937 .81408 .587 .00844 .00833 .00952 .00780 .00090 .00267 .00185
FeM3 -.37935 .80937 .81408 .413 .00844 .00833 .00952 .00780 .00090 .00267 .00185
As -.24326 .5 .91447 .484 .01147 .0185 .0080 .0063 .000 .00049 .000
Sb -.24326 .5 .91447 .016 .01147 .0185 .0080 .0063 .000 .00049 .000
O1 -.2695 .90220 .66086 .0106 .0113 .0091 .0108 .0001 .0019 .0017
O2 -.2676 .70296 .67771 .0107 .0107 .0116 .0095 .0008 .0023 -.0006
O3 -.5 .71360 0 .0086 .0084 .0105 .0072 .000 .0025 .000
O4 -.5 .90412 0 .0144 .0168 .0086 .0168 .000 .0028 .000
O5 -.2771 .5 .6473 .0111 .0117 .0113 .0117 .000 .0058 .000
Ba1 -.5 .5 0 .232 .0099
Pb2 -.4583 .5 .9395 .0444 .0220
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Graeserite
Biagioni C, Bonaccorsi E, Perchiazzi N, Halenius U, Zaccarini F
Mineralogical Magazine 84 (2020) 766-777
Derbylite and graeserite from the Monte Arsiccio mine, Apuan Alps, Tuscany, Italy:
occurrence and crystal-chemistry
Note: Sample F
Locality: Monte Arsiccio mine, Apuan Alps, Italy
_database_code_amcsd 0020901
5.0225 14.3114 7.1743 90 104.878 90 C2/m
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
TiM1 0 .5 .5 .0102 .0096 .0073 .0128 .000 .0012 .000
TiM2 -.5 .61918 .5 .71 .0086 .0064 .0083 .0110 .000 .0017 .000
FeM2 -.5 .61918 .5 .29 .0086 .0064 .0083 .0110 .000 .0017 .000
TiM3 -.3810 .80959 .81403 .91 .0087 .0074 .0090 .0095 .0015 .0019 .0027
FeM3 -.3810 .80959 .81403 .09 .0087 .0074 .0090 .0095 .0015 .0019 .0027
As -.253 .5 .914 .345 .012 .022 .0071 .006 .000 .003 .000
Sb -.306 .5 .930 .155 .012 .022 .0071 .006 .000 .003 .000
O1 -.2712 .9021 .6618 .0157 .018 .012 .017 -.001 .004 .002
O2 -.2674 .7034 .6785 .0141 .010 .016 .016 .002 .002 .001
O3 -.5 .7122 0 .0120 .017 .008 .011 .000 .003 .000
O4 -.5 .9017 0 .0161 .017 .008 .024 .000 .007 .000
O5 -.2801 .5 .6486 .0172 .018 .018 .017 .000 .008 .000
Ba -.493 .5 -.0123 .116 .0096
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Graeserite
Berlepsch P, Armbruster T
Schweizerische Mineralogische und Petrographische Mitteilungen 78 (1998) 1-9
The crystal structure of Pb2+-bearing graeserite, Pb0.14(Fe,Ti)7AsO12+x(OH)2-x,
a mineral of the derbylite group
Locality: Gorb, Binn valley, Western Alps, Switzerland
_database_code_amcsd 0015412
5.0053 14.272 7.1736 90 105.165 90 C2/m
atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb -.456 .5 .9367 .07 2.5 .002 .018 .043 0 -.017 0
FeM1 0 .5 .5 .5714 .66 .0080 .0059 .0107 0 .0014 0
TiM1 0 .5 .5 .4286 .66 .0080 .0059 .0107 0 .0014 0
FeM2 .5 .62037 .5 .5714 .65 .0086 .0074 .0088 0 .0024 0
TiM2 .5 .62037 .5 .4286 .65 .0086 .0074 .0088 0 .0024 0
FeM3 -.3756 .81093 .8136 .5714 .61 .0078 .0072 .0085 .0013 .0026 .0008
TiM3 -.3756 .81093 .8136 .4286 .61 .0078 .0072 .0085 .0013 .0026 .0008
As -.2515 .5 .9169 .5 .96 .022 .0052 .0079 0 .0003 0
O1 -.2702 .9016 .6626 1.08 .016 .012 .014 .000 .006 -.002
O2 -.2608 .7046 .6798 .94 .012 .013 .011 .000 .004 -.002
O3 .5 .7139 0 .90 .014 .009 .013 0 .005 0
O4 .5 .9041 0 1.17 .020 .010 .016 0 .006 0
O5 -.279 .5 .6500 .5 1.02 .012 .012 .018 0 .010 0
OH5 -.279 .5 .6500 .5 1.02 .012 .012 .018 0 .010 0
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