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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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TitleMuscovite dehydroxylation: High-temperature studies.
AuthorsGuggenheim, S.;Chang, Y.-H.;Koster-van Groos, A.F.
ReferenceIC&volume=72&fpage=537&details=yes target=icsd_help>American Mineralogist (1987) 72, 537-550
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CompoundH2 Al2.9 K1 O12 Si3.1 - [Muscovite 2M1] Potassium alumosilicate hydroxide * [AB2C4X12] [mS84] [f9 e] []
Cell5.189(1), 9.004(1), 20.256(6), 90., 95.74(2), 90.
C12/C1 (15) V=941.65
RemarksR=0.071000 : T =923 : M =Muscovite 2M1 :
Deviation of the charge sum from zero tolerable.
Mean T-O: 1.636, 1.634

Atom (site) Oxid. x, y, z, B, Occupancy
K1(4e)1
Al1(8f)3
Al2(8f)3
Si1(8f)4
Al3(8f)3
Si2(8f)4
O1(8f)-2
O2(8f)-2
O3(8f)-2
O4(8f)-2
O5(8f)-2
O6(8f)-2
H1(8f)1
00.090.2501
0.250.080.0001
0.460.930.1300.22
0.460.930.1300.77
0.450.250.1300.22
0.450.250.1300.77
0.420.090.1601
0.240.810.1501
0.240.360.1601
0.460.940.0501
0.380.250.0501
0.450.560.0401.
01.
Atom (site) Oxid. Beta11, Beta22, Beta33, Beta12, Beta13, Beta23
K1(4e)1
Al1(8f)3
Al2(8f)3
Si1(8f)4
Al3(8f)3
Si2(8f)4
O1(8f)-2
O2(8f)-2
O3(8f)-2
O4(8f)-2
O5(8f)-2
O6(8f)-2
H1(8f)1
0.040.010.0000.000
0.010.000.00-.000.000.00
0.010.000.00-.000.000.00
0.010.000.00-.000.000.00
0.010.000.00-.000.000.00
0.010.000.00-.000.000.00
0.030.000.00-.000.000.00
0.020.010.00-.00-.000.00
0.010.000.000.00-.00-.00
0.010.000.000.000.000.00
0.010.000.000.00-.000.00
0.010.000.00-.000.00-.00
000000

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