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1 entry selected.
CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
***Click the ANX, Pearson or Wyckoff Symbol to find structures with that symbol***.
CC=27592 Help
TitleThe crystallography of bastnaesite, parisite, roentgenite, and synchisite.
AuthorsDonnay, G.;Donnay, J.D.H.
ReferenceIC&volume=38&fpage=932&details=yes target=icsd_help>American Mineralogist (1953) 38, 932-963
Link XRef SCOPUS Google
CompoundC3 Ca1 Ce2 F2 O9 - [Parisite (Ce)] Dicerium calcium difluoride tricarbonate [] [hR102] [b14 a12] []
Cell7.124, 7.124, 84.1, 90., 90., 120.
R3H (146) V=3696.37
RemarksM =Parisite (Ce) : =33-269 :
Calculated density unusual but tolerable.
No R value given in the paper.
At least one temperature factor missing in the paper.
The lattice Parameters are unusual but agree with the paper.
Disordered crystal, for ordered one: a=7.176
For monoclinic form cp. 89803
PDF 33-269, subcell has a/SQRT(3), c/18

Atom (site) Oxid. x, y, z, B, Occupancy
F1(3a)-1
F2(3a)-1
F3(3a)-1
F4(3a)-1
F5(3a)-1
F6(3a)-1
F7(3a)-1
F8(3a)-1
F9(3a)-1
F10(3a)-1
F11(3a)-1
F12(3a)-1
Ce1(9b)3
Ce2(9b)3
Ce3(9b)3
Ce4(9b)3
Ca1(9b)2
Ca2(9b)2
C1(9b)4
C2(9b)4
C3(9*)4
O1(9b)-2
O2(9b)-2
O3(9b)-2
O4(9b)-2
O5(9b)-2
O6(9b)-2
O7(9*)-2
00001
000.3301
000.6601
000.1001
000.4401
000.7701
000.1601
000.501
000.8301
000.2701
000.6001
000.9401
0.330001
0.3300.1001
0.3300.1601
0.3300.2701
0.3300.0501
0.3300.2201
0.240.330.1301
0.240.330.3001
04.
0.060.330.1301
0.060.330.3001
0.330.330.1201
0.330.330.1501
0.330.330.2901
0.330.330.3101
012.

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