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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=79738 Help
TitleA new anhydrous amphibole from the Hoskins mine, Grenfell, New South Wales, Australia: description and crystal structure of ungaretiite, Na Na2 (Mn(2+)2 Mn(3+)3) Si8 O22 O2.
AuthorsHawthorne, F.C.;Oberti, R.;Cannillo, E.;Sardone, N.;Zanetti, A.;Grice, J.D.;Ashley, P.M.
ReferenceIC&volume=80&fpage=165&details=yes target=icsd_help>American Mineralogist (1995) 80, 165-172
Link XRef SCOPUS Google
CompoundH0.2 Ca0.03 K0.15 Mg0.29 Mn4.71 Na2.77 O24 Si8 - [Ungarettiite] Sodium potassium calcium magnesium manganese manganese(III) catena-silicate oxide * [A2B3C3D8X24] [mS80] [j7 i3 h2 g2 a] []
Cell9.893(3), 18.0410(70), 5.295(3), 90., 105.10(3), 90.
C12/M1 (12) V=912.42
RemarksR=0.014000 : M =Ungarettiite : =Mn : P =47-1867 : D
Calculated density unusual but tolerable.
PDF 47-1867, sample U2, mean T-O: 1.619, 1.632, mean M-O: 2.039

Atom (site) Oxid. x, y, z, B, Occupancy
O1(8j)-2
O2(8j)-2
O3(4i)-2
O4(8j)-2
O5(8j)-2
O6(8j)-2
O7(4i)-2
Si1(8j)4
Si2(8j)4
Mn1(4h)3
Mn2(4h)2
Mn3(4g)2
Mg1(4g)2
Mn4(2a)3
Mg2(2a)2
Na1(4h)1
Ca1(4h)2
Na2(4i)1
K1(4i)1
Na3(4g)1
H1(4i)1
0.120.080.2001
0.110.150.7001
0.0900.7101
0.340.240.7901
0.350.120.0701
0.340.110.5701
0.3500.2901
0.280.080.2801
0.280.160.7801
00.080.500.95
00.080.500.05
00.18000.89
00.18000.11
00000.93
00000.07
00.270.500.98
00.270.500.01
0.030.50.0700.2
0.030.50.0700.07
00.48000.2
00.1
Atom (site) Oxid. Beta11, Beta22, Beta33, Beta12, Beta13, Beta23
O1(8j)-2
O2(8j)-2
O3(4i)-2
O4(8j)-2
O5(8j)-2
O6(8j)-2
O7(4i)-2
Si1(8j)4
Si2(8j)4
Mn1(4h)3
Mn2(4h)2
Mn3(4g)2
Mg1(4g)2
Mn4(2a)3
Mg2(2a)2
Na1(4h)1
Ca1(4h)2
Na2(4i)1
K1(4i)1
Na3(4g)1
H1(4i)1
0.000.000.0000.000
0.000.000.00-.000.00-.00
0.000.000.0000.000
0.000.000.00-.000.000.00
0.000.000.0000.000.00
0.000.000.0000.00-.00
0.000.000.0100.000
0.000.000.00-.000.000
0.000.000.00-.000.000
0.000.000.0000.000
0.000.000.0000.000
0.000.000.0000.000
0.000.000.0000.000
0.000.000.0000.000
0.000.000.0000.000
0.000.000.0100.000
0.000.000.0100.000
0.000.000.0300.010
0.000.000.0300.010
0.000.000.0400.010
000000

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