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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=26840 Help
TitleCrystal Structure of Larsenite Pb Zn Si O4.
AuthorsPrewitt, C.T.;Kirchner, E.;Preisinger, A.
ReferenceZeitschrift fuer Kristallographie, Krist (1967) 124, 115-130
Link XRef SCOPUS Google
CompoundO4 Pb1 Si1 Zn1 - [Larsenite] Lead zinc silicate [ABCX4] [oP56] [a14] []
Cell8.2441(1), 18.96259(20), 5.06(1), 90., 90., 90.
PNA21 (33) V=791.03
RemarksR=0.055000 : P =20-607 : M =Larsenite :
Calculated density unusual but tolerable.
PDF 20-607, with Zn in tetrahedral sites, no Olivine

Atom (site) Oxid. x, y, z, B, Occupancy
Pb1(4a)2
Pb2(4a)2
Zn1(4a)2
Zn2(4a)2
Si1(4a)4
Si2(4a)4
O1(4a)-2
O2(4a)-2
O3(4a)-2
O4(4a)-2
O5(4a)-2
O6(4a)-2
O7(4a)-2
O8(4a)-2
0.030.270.2501
0.140.050.2701
0.820.150.7101
0.500.050.7201
0.200.170.7201
0.730.070.2101
0.220.250.591.4(1
0.350.130.640.7(1
0.030.140.580.8(1
0.170.180.041.3(1
0.740.150.080.9(1
0.570.030.080.7(1
0.880.020.140.8(1
0.700.070.531.1(1
Atom (site) Oxid. Beta11, Beta22, Beta33, Beta12, Beta13, Beta23
Pb1(4a)2
Pb2(4a)2
Zn1(4a)2
Zn2(4a)2
Si1(4a)4
Si2(4a)4
O1(4a)-2
O2(4a)-2
O3(4a)-2
O4(4a)-2
O5(4a)-2
O6(4a)-2
O7(4a)-2
O8(4a)-2
0.000.000.000.00-.00-.00
0.000.000.0000.00-.00
0.000.000.00-.000.000.00
0.000.000.00-.000.000.00
0.000.000.000.00-.00-.00
0.000.000.000.000.00-.00
000000
000000
000000
000000
000000
000000
000000
000000

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