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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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CC=40092 Help
TitleHedyphane from Franklin, New Jersey and Langban, Sweden: cation ordering in an arsenate apatite.
AuthorsRouse, R.C.;Dunn, P.J.;Peacor, D.R.
ReferenceIC&volume=89&fpage=920&details=yes target=icsd_help>American Mineralogist (1984) 89, 920-927
Link XRef SCOPUS Google
CompoundAs3 Ca2 Cl1 O12 Pb3 - [Hedyphane] Calcium lead arsenate chloride (2/3/3/1) [A2B3C3XY12] [hP42] [i h4 f b] []
Cell10.140(3), 10.140(3), 7.185(4), 90., 90., 120.
P63/M (176) V=639.78
RemarksR=0.076000 : M =Hedyphane : P =36-396 :
At least one temperature factor is implausible or meaningless but agrees with the value given in the paper.
Calculated density unusual but tolerable.

Atom (site) Oxid. x, y, z, B, Occupancy
Ca1(4f)2
Pb1(6h)2
As1(6h)5
O1(6h)-2
O2(6h)-2
O3(12i)-2
Cl1(2b)-1
0.330.660.0001
0.250.010.2501
0.400.380.2501
0.360.520.2501
0.610.470.2501
0.360.270.0601
00001
Atom (site) Oxid. Beta11, Beta22, Beta33, Beta12, Beta13, Beta23
Ca1(4f)2
Pb1(6h)2
As1(6h)5
O1(6h)-2
O2(6h)-2
O3(12i)-2
Cl1(2b)-1
0.000.000.000.0000
0.000.000.000.0000
0.000.000.000.0000
-.000.000.000.0000
0.000.000.000.0000
0.010.000.010.00-.01-.00
0.000.000.000.0000

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