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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=56925 Help
TitleClinopyroxene from Lipari: Comparison with analogues from other Aeolian Islands, Italy.
AuthorsPasqual, D.;Molin, G.;Zanazzi, P.F.;Crisci, G.M.
ReferenceIC&volume=36&fpage=97&details=yes target=icsd_help>Canadian Mineralogist (1998) 36, 97-105
Link XRef SCOPUS Google
CompoundAl0.1 Ca0.85 Fe0.23 Mg0.86 Mn0.01 Na0.01 O6 Si1.93 Ti0.01 - [Augite] Magnesium aluminium titanium iron iron(III) calcium sodium manganese catena-alumosilicate * [ABC2X6] [mS40] [f4 e2] []
Cell9.739(6), 8.915(4), 5.259(3), 90., 106.36(5), 90.
C12/C1 (15) V=438.12
RemarksR=0.021700 : M =Augite : =Fe : P =41-1483 :
Some Fe may be on M2': 0 .2197 .25, sample L11
Closure temperature: 754 K, atomic parameters from author
Mean M-O: 2.080, 2.489 (CN 8), T-O: 1.637

Atom (site) Oxid. x, y, z, B, Occupancy
Mg1(4e)2
Fe1(4e)2.25
Al1(4e)3
Ti1(4e)4
Ca1(4e)2
Na1(4e)1
Mg2(4e)2
Fe2(4e)2
Mn1(4e)2
Si1(8f)4
Al2(8f)3
O1(8f)-2
O2(8f)-2
O3(8f)-2
00.900.250.000.84
00.900.250.000.12
00.900.250.000.03
00.900.250.000.01
00.290.250.010.85
00.290.250.010.01
00.290.250.010.02
00.290.250.010.11
00.290.250.010.01
0.280.090.230.000.96
0.280.090.230.000.03
0.110.080.140.001
0.360.240.320.011
0.350.01-.000.011

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