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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=39688 Help
TitleRefined crystal structure of kavansite.
AuthorsSolov'ev, M.V.;Rastsvetaeva, R.K.;Pushcharovskii, D.Yu.
ReferenceKristallografiya (1993) 38, 264-267
Link XRef SCOPUS Google
CompoundH8 Ca1 O15 Si4 V1 - [Cavansite] Calcium oxovanadium phyllo-tetrasilicate tetrahydrate [ABC4X15] [oP116] [d8 c5] []
Cell9.767(4), 13.630(4), 9.627(3), 90., 90., 90.
PCMN (62) V=1281.59
RemarksR=0.046000 : P =25-182 : M =Cavansite :
The coordinates are those given in the paper but the atomic distances do not agree with those calculated during testing.The coordinates are probably correct.
R(iso)=0.056

Atom (site) Oxid. x, y, z, B, Occupancy
Si1(8d)4
Si2(8d)4
Ca1(4c)2
V1(4c)4
O1(8d)-2
O2(8d)-2
O3(8d)-2
O4(8d)-2
O5(8d)-2
O6(4c)-2
O7(8d)-2
O8(4c)-2
O9(4c)-2
H1(8d)1
H2(8d)1
H3(8d)1
H4(4c)1
H5(4c)1
0.090.030.180.821
0.310.040.390.751
0.080.250.381.121
0.400.250.520.931
0.080.150.171.201
0.290.150.411.251
0.440.020.291.321
0.16-.010.041.201
0.18-.000.311.051
0.550.250.451.881
0.940.110.473.5(1
0.370.250.133.3(1
0.810.250.286.1(1
0.580.080.053.5(1
0.860.110.433.5(1
0.420.200.153.3(1
0.720.250.346.1(1
0.740.250.196.1(1

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