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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=95359 Help
TitleSingle-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas K M3 (Al(3+), Si(3+))4 O10 (O H)2, where M = Ni(2+), Mg(2+), Co(2+), Fe(2+) or Al(3+).
AuthorsRedhammer, G.J.;Roth, G.
ReferenceIC&volume=87&fpage=146&details=yes target=icsd_help>American Mineralogist (2002) 87, 146-147
Link XRef SCOPUS Google
CompoundH2 Al1.996 Fe2.554 K1 O12 Si2.45 - [Biotite] Potassium iron aluminium alumosilicate hydroxide * [AB3C4X12] [mS44] [j3 i2 h d a] []
Cell5.3741(14), 9.3083(19), 10.2829(29), 90, 100.220(32), 90
C12/M1 (12) V=506.23
RemarksR=0.028700 : M =Biotite :

Atom (site) Oxid. x, y, z, B, Occupancy
Si1(8j)4
Al1(8j)3
Fe1(2d)2.041
Al2(2d)3
Fe2(4h)2.041
Al3(4h)3
K1(2a)1
O1(8j)-2
O2(4i)-2
O3(8j)-2
O4(4i)-2
H1(4i)1
0.570.160.220.970.61
0.570.160.220.970.38
0.0.50.50.820.85
0.0.50.50.820.14
0.0.830.50.830.85
0.0.830.50.830.14
0.0.0.2.891
0.820.220.161.951
0.510.0.171.851
0.630.160.391.421
0.120.0.391.521.
0.110.0.302.351
Atom (site) Oxid. U11, U22, U33, U12, U13, U23
Si1(8j)4
Al1(8j)3
Fe1(2d)2.041
Al2(2d)3
Fe2(4h)2.041
Al3(4h)3
K1(2a)1
O1(8j)-2
O2(4i)-2
O3(8j)-2
O4(4i)-2
H1(4i)1
0.010.010.01-0.00.00-0.0
0.010.010.01-0.00.00-0.0
0.000.000.010.0.000.
0.000.000.010.0.000.
0.000.000.010.0.000.
0.000.000.010.0.000.
0.030.030.030.0.000.
0.020.020.02-0.00.00-0.0
0.030.010.020.0.000.
0.010.010.01-0.00.000.00
0.010.020.010.0.000.
000000

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